Well exactly. It's not reserved for poor women. There are women who are only at university to bag a rich man, an aristo or a banker so they can do the same- sit around doing nothing. The men know this too, and have a shag pad in London and a wife and kids in the Home counties. I knew a few of them when my children were young. They seemed bored and unfulfilled but doing something about it would have meant them using their educations and getting a job, so they left it as it was, usually interspersed with sniffy attitudes about working mothers.