A 2021 Hankook Research national survey (n = 1,000, nationally representative) found that 44% of South Korean men who completed mandatory military service said the experience had more disadvantages than advantages overall, with the rate rising to 62% among 18-29-year-olds who described service as a “waste of time.” A regression discontinuity study using Korean National Health and Nutrition Examination Survey data confirmed objective lasting costs: mandatory military service increased the probability of being a current smoker by approximately 12 percentage points and the probability of drinking more than twice a week by approximately 8 percentage points, with these effects persisting for several years after discharge. The combination of attitudinal negative evaluation (44%) and documented long-lasting physical health costs provides a consistent picture of moderate-to-high action-side regret for standard military service.
The alternative civilian service path, legal only since January 2020, carries its own documented costs. Korea Institute for Defense Analyses surveys of 2020-2022 completers found that approximately 29% reported social or career consequences from the public conscientious objection declaration required to apply. The structural design of the alternative path amplifies these costs: the 36-month term (versus 18-21 months for standard service) represents 15-18 additional months of foregone career earnings and career development, and the public administrative record of the declaration creates a permanent marker visible to employers. The 29% social-stigma figure likely understates total inaction-side costs because it does not capture the income and opportunity costs of the longer term.
The 15-point gap between the two regret proxies (44% vs. 29%) supports an action-dominates pattern, meaning standard military service generates more negative evaluation than the alternative civilian path in the current cultural climate. This is a significant finding in the South Korean context, where military service has historically been central to male identity and social standing. The action-side rate may understate true regret due to social desirability: admitting that mandatory service was negative in a military-valorising culture carries stigma, and the 44% attitudinal measure likely represents those whose experience was negative enough to overcome that barrier to candid reporting. The alternative service cohort remains small and concentrated among Jehovah’s Witnesses, meaning the 29% inaction-side figure reflects an unrepresentative early-adopter population rather than the broader population of men who might choose the alternative path if social stigma declines.