Freedom to Marry Young – Mark Regnerus, washingtonpost.com:
Most young women are mature enough to handle marriage. According to data from the government's National Survey of Family Growth, women who marry at 18 have a better shot at making a marriage work than men who marry at 21. There is wisdom in having an age gap between spouses. For women, age is (unfortunately) a debit, decreasing fertility. For men, age can be a credit, increasing their access to resources and improving their maturity, thus making them more attractive to women. We may all dislike this scenario, but we can't will it away.