Not much of a man if you can't handle changing a diaper, feed your kid or give them a bath.
I suppose IF I had a wife that could make a couple 6 figures I would be willing to stay home. But if it was only a couple 20 or 30 thousand more I wouldn't stay home.
I think it is a natural role for the man to be primary provider (and protector). I see how it confuses the family dynamics when it is the other way around. I have an in-law that the woman is a lawyer and makes a lot more than the LEO husband. He feels emasculated around her and makes up for it by having affairs....just need to prove he was a man has been the finding...

I also see how it has effected their three sons. They just ain't right when man woman dynamics are involved. My younger, than them, daughters are able to tell them to do something and they jump, my daughters think it is funny as all get out. They are whipped before they even have a girl friend.