The average American woman is nearly 29 years old at her first marriage, and the average man is 30. One generation ago, in 1990, the median age was 23 for women and 26 for men.

Plenty of commentators greet this as unmitigated progress. It means more economic equality because women have the chance to build their careers. It means fewer abusive relationships because it indicates fewer women are getting married out of necessity. The assumption is that people more mature when they wed are more likely to choose wisely and have the patience and prudence needed to make a marriage and family work.