It just now occurred to me that maybe uneducated women get married and have kids out of economic self-preservation. The more educated, the more able to make their own way, the less they have to marry and have kids if they don't want to.
But maybe we're also in an over-reaction. Women felt stifled in that environment. So they got jobs and bosses and all the workplace stuff that we find... stifling. It's not necessarily better; it's just a different flavor of bad. As more women have time to try it and find it to be empty, we may see a reaction away from that as the ideal of what female success looks like.