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Likelier

行動 vs. 不行動の後悔

繊細な個人的な話を公開する(SNS、回顧録、メディアなど)か、プライベートに留めるか

行動した場合

繊細な個人的な体験を公に共有する(SNS・文章・メディアで)

44%

行動しなかった場合

繊細な体験を内に留め、公にしない

18%

それぞれの選択を後で後悔した人の割合。バーと完全な記録は下に表示されます。


ライフスタイル

最終確認 2026-05-13

証拠の質 3.63/5

8次元のレビュー評価。基準は 品質ルーブリック 。各次元は1〜5で評価。

D1 出典の検証
4/5
D2 出典の権威性と独立性
4/5
D3 後悔率の正確性
2/5
D4 出典の比較可能性
2/5
D5 ギロヴィッチ・パターン
4/5
D6 文章の質
4/5
D7 注意事項の完全性
5/5
D8 サンプルの質
4/5
平均 3.63/5
An open journal beside a closed locked diary on a plain surface
代替データ — この決断に関する直接的な後悔調査は存在しません。比率は後悔を直接尋ねる質問ではなく、満足度スコアとアクセス障壁のデータから導出されています。以下の注意事項を参照してください。

行動への後悔

繊細な個人的な体験を公に共有する(SNS・文章・メディアで)

44%

米国の成人の44%が、ソーシャルメディアで共有した何かを後悔している

ソーシャルメディアで個人情報を共有した米国成人

横断的、2016年

不作為への後悔

繊細な体験を内に留め、公にしない

18%

つながりの後悔(沈黙を守ること、共有しないこと)は、Pink の World Regret Survey(26,000人以上)で最大の後悔カテゴリーである。何人が物語を非公開に保ちそれを後悔しているかを測定した調査はないため、約18%は保守的な代理指標である

重大な困難または個人的物語を経験したが公に共有しないことを選んだ成人

継続収集、2020-2021年

この選択を後悔した割合

action dominates — 行動が優勢 — 多くは行動したことを後悔しています。

関連する決断

意味的に類似する決断 — 同じ領域、異なるトレードオフ。

family

シェアレンティング vs. 子どものデジタルプライバシー

この選択を後悔した割合

行動が優勢

行動の後悔が6.5倍高い

family直接

子どものSNSアカウントへのアクセス

この選択を後悔した割合

行動が優勢

行動の後悔が5.4倍高い

lifestyle

SNSの利用

この選択を後悔した割合

行動が優勢

行動の後悔が3.2倍高い

lifestyle

好意を伝える

この選択を後悔した割合

不作為が優勢

不作為の後悔が1.8倍高い

lifestyle

カミングアウト

この選択を後悔した割合

不作為が優勢

不作為の後悔が2.3倍高い

lifestyle

重大なミスを認める vs. 隠蔽する

この選択を後悔した割合

不作為が優勢

不作為の後悔が2.9倍高い

lifestyle

意思決定に人工知能を活用

この選択を後悔した割合

均衡

ほぼ均衡

lifestyle

市民参加 vs 不参加

この選択を後悔した割合

不作為が優勢

不作為の後悔が3.3倍高い

A Secure Data Recovery survey of 1,002 US adults (January 2023) found that 44% of adults regret something they shared on social media, with location (59%) and age (57%) the personal details most commonly overshared in the same survey. A 2022 peer-reviewed study in Computers in Human Behavior Reports (Brammer et al., n=410) found that the content users themselves classify as “oversharing” centers on exactly the most sensitive categories: medical issues, relationships, politics, and emotionally based posts. The same Secure Data Recovery survey reports a steep generational gradient: Millennials show the highest rates of social media regret at approximately 52%, followed by Gen Z at 48%. The inaction side is far less well measured. Daniel Pink’s World Regret Survey of more than 26,000 respondents across 134 countries finds that connection regrets — the failure to reach out, to say what needed saying, or to share important personal experiences — are the largest of his four core regret categories, and that inaction regrets outnumber action regrets by roughly two to one overall. The survey publishes no numeric breakdown of connection regrets, and no survey directly measures how many people who kept a difficult experience private later regret staying silent, so the ~18% inaction rate used here is a conservative modeled proxy rather than a reported figure.

The mechanism underlying inaction regret is distinct from that driving action regret. Pennebaker and Seagal (1999) established in peer-reviewed research that articulating an important personal experience — forming it into a narrative through writing or talking — produces measurable improvements in mental and physical health, replicated across age, gender, culture, and social class. The corollary, central to inaction regret, is that the experience never put into words forgoes that benefit; the unformed story keeps doing the organizing work it was never allowed to finish. Inaction regret in this domain tends to be a slow accumulation rather than a discrete event: the person who never told their story finds, years later, that the silence compounded rather than resolved the underlying weight of the experience. This is consistent with Gilovich and Medvec’s finding that inaction regrets tend to be longer-lasting and more deeply felt than action regrets over time, even when the short-term balance favors inaction.

The direction of the regret gap — action regret exceeding inaction regret by 26 percentage points — is moderated heavily by scale and permanence. Sharing a sensitive story with a trusted small group, a therapist, or a supportive community carries a regret profile closer to the inaction side than to the 44% action rate, which captures all public social media oversharing including posts to hundreds or thousands of followers. The specific risk of context collapse — in which a post intended for one audience reaches an employer, estranged family member, or anonymous hostile strangers — is the most commonly cited specific trigger converting well-intentioned public disclosure into lasting regret. Research consistently shows that people dramatically underestimate this risk at the moment of posting, which partly explains why the action-regret rate is so substantially higher than the inaction rate despite the real psychological costs of sustained silence.

出典: 行動

根拠台帳

以下の各数値は各出典が報告した内容であり、引用した原文の抜粋と算出方法を記載しています。リンクをクリックして直接確認できます。

1/2 件の出典が引用元と一字一句一致することを独立して検証済み

  1. [1] Secure Data Recovery — Study: Americans' Privacy May Be at Risk As People Overshare 検証済み
    Study: Americans' Privacy May Be at Risk As People Overshare
    統計値
    44% of surveyed US adults report regretting something they shared on social media; Millennials (52%) have the most regrets over posts, followed by Gen Z (48%)
    抜粋
    “"Close to half (44%) report regretting something they've shared online. ... Millennials (52%) have the most regrets over posts followed closely by Gen Z (48%). ... Location (59%) and age (57%) are most commonly overshared on social media. ... From January 19, 2023 to January 22, 2023, we surveyed 1,002 Americans across the United States about their social media habits." ”
    出典データ
    2023-02-27
    アクセス日
    2026-06-30
    検証
    グラウンディング監査の際、抜粋を引用元から独立して再取得し、原文と一字一句一致することを確認しました。
    計算過程
    Secure Data Recovery survey of 1,002 US adults (Jan 19-22, 2023). Directly reports "44% report regretting something they've shared online," which is the action-side rate used here. The same survey supplies the generational breakdown (Millennials 52%, Gen Z 48%) quoted in the prose. This replaces an earlier citation that misattributed the 44% figure to a non-existent "Webroot/Harris Poll" survey; verification (2026-06-30) confirmed the Webroot blog actually cites a Euro RSCG ~40% figure for 18-35-year-olds and contains no 44% adult figure, while Secure Data Recovery is the real source of the 44% / 52% / 48% numbers. The figure covers all social media oversharing, not sensitive personal stories specifically, so it remains a proxy (see caveats).
  2. [2] Computers in Human Behavior Reports — Oversharing on social networking sites: A contemporary communication phenomenon
    Oversharing on social networking sites: A contemporary communication phenomenon
    統計値
    In a survey of 410 undergraduates, oversharing on social media was defined in users' own words and the topics they classified as oversharing centered on medical issues, politics, relationships, and emotionally based posts
    抜粋
    “"[Paraphrase from abstract -- full text paywalled] The purpose of this study was to understand what behaviors and perceptions are associated with oversharing on social media. A survey of 410 undergraduate college students defined 'oversharing' in their own words, identified the topics they considered part of that category, and revealed differences in their perceptions of oversharing across social media sites. Topics participants classified as oversharing commonly involved medical issues, politics, relationships, and emotionally based posts." ”
    出典データ
    2022-01-01
    アクセス日
    2026-06-30
    計算過程
    Brammer, Punyanunt-Carter & Duffee (2022), Computers in Human Behavior Reports, vol. 8, art. 100236. Peer-reviewed, open-access survey of 410 undergraduates establishing that emotionally charged and sensitive content (medical, relationship, identity) is exactly the category users perceive as oversharing -- the empirical context for why public disclosure of sensitive personal stories carries elevated regret risk. This source does not itself supply the 44% rate; it qualifies the topic categories. It replaces an earlier citation that pointed (via a wrong URL, S0747563222000413) to an unrelated videogame-microtransactions systematic review and carried a fabricated "52% / context-collapse" excerpt; verification (2026-06-30) confirmed no "Oversharing ... A systematic review" article exists in Computers in Human Behavior and corrected the citation to the real Brammer et al. paper.

出典: 不作為

根拠台帳

以下の各数値は各出典が報告した内容であり、引用した原文の抜粋と算出方法を記載しています。リンクをクリックして直接確認できます。

1/2 件の出典が引用元と一字一句一致することを独立して検証済み

  1. [1] Daniel H. Pink / World Regret Survey — World Regret Survey 検証済み
    World Regret Survey

    See all 4 Likelier entries citing this source →

    統計値
    The World Regret Survey has gathered more than 26,000 regrets from people in 134 countries; connection regrets (the failure to reach out, say what needed to be said, or share important experiences) are the largest of Pink's four core regret categories, and inaction regrets outnumber action regrets by roughly two to one
    抜粋
    “"Thank you for visiting the World Regret Survey, which has now gathered more than 26,000 regrets from people in 134 countries." ”
    出典データ
    2021-01-01
    アクセス日
    2026-07-01
    検証
    グラウンディング監査の際、抜粋を引用元から独立して再取得し、原文と一字一句一致することを確認しました。
    計算過程
    Daniel H. Pink, World Regret Survey, 26,000+ respondents from 134 countries (figures verbatim from the live worldregretsurvey.com landing page, re-verified 2026-07-01). The survey itself publishes no numeric breakdown of regret categories; Pink reports only that connection regrets are the largest of the four core categories (foundation, boldness, moral, connection) and that inaction regrets are roughly twice as prevalent as action regrets overall (Pink, interview, Behavioral Scientist, 2022). The inaction-side rate of 0.18 is a modeled proxy, not a figure reported by this source: there is no direct survey of people who kept a difficult experience private and later regretted staying silent, so the rate is set conservatively below the roughly-half share implied by "inaction regrets about twice as prevalent as action regrets" to reflect that only a subset of connection/silence regrets concern public disclosure of a sensitive personal story. An earlier version of this source claimed "approximately 18% of connection regrets reference not disclosing a personal experience" across "105 countries"; verification (2026-07-01) confirmed the live site reports 134 countries and publishes no such subcategory percentage, so the invented breakdown was removed and the excerpt replaced with verbatim site text. The 0.18 proxy is flagged by proxy_only and hedged in regret_display; see caveats.
  2. [2] Journal of Clinical Psychology / Wiley — Forming a Story: The Health Benefits of Narrative
    Forming a Story: The Health Benefits of Narrative
    統計値
    Writing about important personal experiences in an emotional way for as little as 15 minutes over three days brings about improvements in mental and physical health; the formation of a narrative is critical and is an indicator of good mental and physical health
    抜粋
    “"Writing about important personal experiences in an emotional way for as little as 15 minutes over the course of three days brings about improvements in mental and physical health. This finding has been replicated across age, gender, culture, social class, and personality type. ... These findings suggest that the formation of a narrative is critical and is an indicator of good mental and physical health. Ongoing studies suggest that writing serves the function of organizing complex emotional experiences." ”
    出典データ
    1999-01-01
    アクセス日
    2026-07-01
    計算過程
    Pennebaker & Seagal (1999), Journal of Clinical Psychology, 55(10), 1243-1254, doi 10.1002/(SICI)1097-4679(199910)55:10<1243::AID-JCLP6>3.0.CO;2-N (PubMed PMID 11045774). This foundational expressive-writing paper does not supply a regret rate directly; it provides the mechanism by which articulating (versus withholding) a significant personal experience improves mental and physical health -- the pathway through which inaction-side regret accumulates when a story is never told. Not used in rate arithmetic; cited as causal-mechanism support for the 18% inaction-regret estimate. Excerpt is the verbatim journal abstract; an earlier excerpt paraphrased Pennebaker's broader inhibition theory as if verbatim from this abstract and was corrected (2026-07-01) to the actual abstract text after the live Wiley URL returned a paywall (402) and the abstract was re-verified via PubMed.

注意事項

The 44% action-regret figure (Secure Data Recovery, 2023, n=1,002 US adults) covers all social media oversharing, not specifically sensitive personal stories such as trauma, illness, abuse, or identity disclosures. Personal and identifying information is the most-overshared category in that survey, but the overall 44% rate includes oversharing of opinions, location, relationship details, and other information that is outside the narrow scope of this decision, so it is applied as a proxy rather than a direct measure of sensitive-story regret. The inaction-side 18% is derived from connection-regret data in Pink's World Regret Survey, which encompasses many forms of interpersonal silence beyond public narrative disclosure -- the figure is applied conservatively and directionally, not precisely. The decision's outcome depends heavily on audience size and permanence: sharing a sensitive story with a small private support group carries fundamentally different risk than publishing a viral public post, a memoir with wide distribution, or a media interview. Context collapse -- a post reaching unintended audiences such as employers, estranged family members, or strangers -- is the most common specific mechanism converting well-intentioned disclosure into regret, and it is consistently more common than senders anticipate at time of posting. The timing of disclosure also affects outcomes: research on emotional regulation (Gross 2002) suggests that disclosures made during peak emotional distress are more likely to be regretted than those made after reflection.

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