“The jobs out there just aren’t very good, and men seem more willing to take them for whatever reason,” said Jonathan L. Willis, an economist at the Federal Reserve Bank of Kansas City. “The women are looking at those same jobs and saying, ‘I’ll be more productive elsewhere.’ ”

Then there are societal influences that affect a person’s willingness to take a lesser job or return to school.

“There is still this heavy cultural message that men should be out there earning money and supporting themselves, and they feel more distressed by losing their breadwinner role,” said Stephanie Coontz, director of research at the Council on Contemporary Families. “We’ve made much more progress overcoming the ‘feminine mystique’ than this masculine mystique.”

While these roles evolve, community colleges are reporting record enrollment.

Both men and women are going back to school, but the growth in enrollment is significantly larger for women (who dominated college campuses even before the financial crisis). In the last two years, the number of women ages 18 to 24 in school rose by 130,000, compared with a gain of 53,000 for young men.

The education gap aside, in some ways young women will already have an advantage over men in the coming decade. Many of the occupations expected to have the most growth, like home health aides and dental hygienists, have traditionally been filled by women. That is not to say that men cannot take those positions, but they may not want to.

“Today young girls are told they can do anything, go into any occupation. But if boys express any interest in traditionally female occupations, they get teased and bullied,” Ms. Coontz said. “Lots of guys are not understanding what’s happening to traditional low-income or middle-income male jobs.”

Jobs in the male-dominated manufacturing industry and in other sectors involving manual labor have been, and still are, in structural decline. These careers can also be hard to maintain indefinitely because youthful strength eventually fades. And now many manufacturing workers do not have pensions to carry them through when their bodies do break down.