SlateSurfer:

....If men were more active in pressing for making their jobs more compatible with a healthy family life, then those jobs would be more accessible and attractive to women. ....

Men who emphasise balancing their work with their home, family, or personal lives usually end up losing out on career advancement to men or women who are willing to put their careers first. I'm not absolutely certain, but I'd be willing to bet that there's never been a fortune 500 top executive who ever took the time to coach their kid's little leauge/soccer/pop warner football teams, and would guess that the majority probably didn't manage to make it to at least a third of their games (and probably more than that). It's not a coincidence that the women who reach those levels very rarely have children, and those who have frequently do so relatively late in life (late 30's at the earliest).