Good points, all. Actually I know some of those men that decide to be caregivers in the family while the women go off and are the breadwinners (including myself).  The women who are the breadwinners feel good about themselves, the women who stay at home feel fine about themselves (except for the working women who deride them), but the men who stay at home or are the lower earners tend to grow unhappier with time, and end up having pretty low self-esteem.  I'm thinking of one couple in particular as I write this, and it's pretty sad to see what's happened, the man is miserable but doesn't want to articulate why, his wife doesn't quite get his misery, but is miserable because he's so unhappy and so forth.

Maybe generations of social conditioning will reverse this, but yep, there's a lot of pressure on men to still do and live a certain way, and both men and women look down on them when they don't.