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行動 vs. 不行動の後悔

若いうちに結婚する(25歳前)vs. 20代後半か30代まで待つ

行動した場合

25歳前に結婚する

23%

行動しなかった場合

20代後半・30代まで待つ

15%

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。


家族

最終確認 2026-05-13

証拠の質 4.0/5

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
3/5
D4 出典の比較可能性
3/5
D5 ギロヴィッチ・パターン
5/5
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 4.0/5
Two clocks side by side, one showing an early hour and one showing a later hour, set against a calm domestic background.
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

25歳前に結婚する

23%

既婚のアメリカ人の23%が、若すぎるうちに結婚したことを後悔している

既婚米国成人

横断的、遡及的

不作為への後悔

20代後半・30代まで待つ

15%

後悔を直接尋ねた調査は存在しない。約15%は結婚障壁のデータからの代理指標であり、測定された後悔率ではない

遅く結婚または未婚のままの成人、米国全国代表

横断的、2014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

最初の相手と結婚 vs. もっと付き合う

この選択を後悔した割合

行動が優勢

行動の後悔が1.9倍高い

family

早期 vs. 晩期の親になること

この選択を後悔した割合

不作為が優勢

不作為の後悔が1.7倍高い

family

中国:結婚を遅らせる vs. 予定通り結婚

この選択を後悔した割合

行動が優勢

行動の後悔が2.2倍高い

family

専業 vs 共働き

この選択を後悔した割合

行動が優勢

行動の後悔が1.3倍高い

family

離婚

この選択を後悔した割合

均衡

ほぼ均衡

family

私立 vs 公立

この選択を後悔した割合

不作為が優勢

不作為の後悔が3.2倍高い

family

もう一人 vs. 止める

この選択を後悔した割合

不作為が優勢

不作為の後悔が2.6倍高い

family

家族の人数

この選択を後悔した割合

不作為が優勢

不作為の後悔が2.6倍高い

23% of currently married Americans report regretting that they married too young, according to a 2023 Clever Real Estate survey of 1,000 married US adults, placing it as the third most commonly cited marriage regret. This aligns with a consistent structural finding in family demography: age at first marriage is among the strongest demographic predictors of marital dissolution, and marrying before one’s mid-twenties substantially increases the risk of divorce, according to an Institute for Family Studies analysis by Nicholas Wolfinger. That analysis describes a curvilinear pattern — prior to about age 32 each additional year of age at marriage reduces the odds of divorce by roughly 11 percent, with the late twenties emerging as the optimal window. The mechanism is not mysterious — early marriage compresses identity formation, career establishment, and partner vetting into a narrower window, increasing the probability that the match that seemed right at 21 looks different at 30.

The inaction side cannot be measured directly: no large-scale survey asks adults whether they regret waiting too long to marry. Pew Research’s 2014 nationally representative survey of 2,003 US adults found that 53% of never-married adults would like to marry eventually, and among those, 30% cite not having found someone with what they want in a spouse, 27% financial unreadiness, and 22% being too young or not ready to settle down. Those are reasons for remaining unmarried, not retrospective regret about waiting — so the 15% inaction figure shown here is an explicit proxy drawn from that barrier data, not a measured regret rate, and the comparison should be read accordingly. The same Clever Real Estate survey found that 30% of married respondents wish they had married someone more compatible — its single most cited regret — but that figure is not broken out by age at marriage, so it speaks to partner selection in general rather than to people who waited.

Under Gilovich and Medvec’s temporal framework, action regret (marrying too young) tends to dominate the short and medium term, and the 8-point gap in this dataset is consistent with that pattern. The median marriage age in the United States reached 30 for men and 28 for women in 2022, a generational shift from 23/21 in 1970, meaning the population has already moved toward the lower-regret path on average. Whether that shift has reduced population-level regret, or simply shifted its form from “married too young” to “waited too long and now face fertility constraints,” is a question the current literature does not yet answer with bilateral precision.

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] Clever Real Estate — Marriage Decline Survey 2023
    Marriage Decline Survey 2023
    統計値
    23% of respondents regret marrying too young — the 3rd most cited marriage regret
    抜粋
    “"23% of respondents regret marrying too young, making it the third most common marriage regret among surveyed married US adults." ”
    出典データ
    2023-01-01
    アクセス日
    2026-05-13
    計算過程
    Clever Real Estate online survey, n=1,000 married US adults, 2023. Regret rate taken directly from survey: 23% endorsed "marrying too young" as a regret. Used as the action-side regret_rate of 0.23.
  2. [2] Institute for Family Studies — Want to Avoid Divorce? Wait to Get Married, But Not Too Long 検証済み
    Want to Avoid Divorce? Wait to Get Married, But Not Too Long
    統計値
    Prior to age 32, each additional year of age at marriage reduces divorce odds by 11%; after 32, odds of divorce increase by 5% per year -- with the late 20s as the optimal marriage age
    抜粋
    “"Those who tie the knot after their early thirties are now more likely to divorce than those who marry in their late twenties. Prior to age 32 or so, each additional year of age at marriage reduces the odds of divorce by 11 percent. However, after that the odds of divorce increase by 5 percent per year. Research consistently finds that marrying before one's mid-twenties substantially increases the risk of divorce. Age at first marriage is among the strongest demographic predictors of marital dissolution." ”
    出典データ
    2015-07-17
    アクセス日
    2026-05-14
    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
    URL corrected 2026-05-14: the original IFS URL (blog/the-best-age-to-get-married) returns 404. Replaced with the confirmed IFS article by Nicholas Wolfinger (July 2015) on age at marriage and divorce risk, which loads successfully. The Wolfinger article presents the curvilinear finding: late 20s is optimal; marrying before mid-20s substantially raises divorce risk; marrying after 32 also raises it. The corroborating context for the action-side is confirmed: higher divorce risk among early marriages is consistent with higher retrospective regret rates. No separate regret rate extracted.

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。

2/2 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] Pew Research Center — Record Share of Americans Have Never Married 検証済み
    Record Share of Americans Have Never Married

    See all 2 Likelier entries citing this source →

    統計値
    53% of never-married adults would like to marry eventually; among those, 30% say the main reason they are not married is not having found someone with what they want in a spouse, 27% are not financially prepared, and 22% are too young or not ready to settle down
    抜粋
    “"About half of all never-married adults (53%) say they would like to marry eventually... three-in-ten say the main reason they are not married is that they have not found someone who has what they are looking for in a spouse. Nearly as many (27%) say they are not financially prepared for marriage, and 22% say they are too young or not ready to settle down." ”
    出典データ
    2014-09-24
    アクセス日
    2026-05-13
    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
    Pew Research nationally representative survey (n=2,003 US adults, 436 never-married), May 2014. The survey measures REASONS never-married adults remain unmarried, not regret: of the 53% who would like to marry eventually, 30% cite not finding the right spouse, 27% financial unreadiness, 22% being too young / not ready. None of these is a retrospective "regret waiting" measure, so this source does not directly support an inaction-side regret rate. See the inaction_side note below: no reliable direct estimate of regret over delayed marriage exists.
  2. [2] Clever Real Estate — Marriage Decline Survey 2023 検証済み
    Marriage Decline Survey 2023
    統計値
    30% of married Americans wish they had married someone more compatible — the single most cited marriage regret (general, not specific to those who waited)
    抜粋
    “"The top three regrets are: wishing they married someone they're more compatible with (30%), wishing they married someone better with money (24%), and marrying too young (23%)." ”
    出典データ
    2023-01-01
    アクセス日
    2026-05-13
    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
    Same Clever Real Estate survey, n=1,000 married US adults. The "wrong person" regret (30%) is the most common marriage regret overall; it is NOT broken out by age at marriage, so it cannot be attributed to people who waited. Included only as general context that waiting does not by itself solve partner selection -- it does not support an inaction-side regret rate. The 0.15 inaction figure is an acknowledged proxy from the Pew barrier data (see proxy_only: true).

注意事項

The 23% action-regret figure comes from a sample of currently married adults, which excludes those whose early marriage ended in divorce and who may carry higher regret rates. The inaction-side 15% is a lower-bound proxy derived from a Pew question about barriers to marriage, not a direct retrospective regret measure. The Clever Real Estate survey is an online panel, not a probability sample. The rising median marriage age (30 for men, 28 for women in 2022 vs. 23/21 in 1970) reflects a population shift toward waiting, but does not itself measure regret. The two sides are not drawn from the same survey or using equivalent questions, so the 8-point delta is directional rather than precise.

生データ: /api/decisions.json

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