It’s not just women falling behind at work. This group is, too.

It has become clear that women—and working mothers, in particular—are up against all kinds of challenges that threaten their foothold in the labor force. But one trend that may be less evident is that men are also dropping out of the workforce, albeit for different reasons.  The jobs report last week offered a more sunny outlook than expected, with an uptick of 115,000 jobs in April; the unemployment rate also held steady at 4.3%. The data also, however, points to a more nuanced story ab...