People want exciting partners when they're younger, and the hotter version of their opposite-sex parent when they get broody and their friends are posting cute photos of their toddlers at the ball game on Facebook. It's a unisex issue. Also, this is pulled out of my ass, but desire for children seems partially dependent on the stability of the current partner. It's not a variable that always exists independent of the relationship. Lots of friends were adamant about childlessness while they were dating fuckboys and girls whose shit was not together, but their minds change when someone comes along who doesn't get drunk with her friends every weekend.
Disagree somewhat. If the woman feels secure in her own financial independence/prowess, it is not at all uncommon for her to be open to childbearing or actively pursue it. Especially in the latter years and especially if that's what they really want to do.
