system
A chat on subreddit /r/NoStupidQuestions
human
Improved education and opportunities for women

"Why should I have a family when I can have a career instead"
gpt
It wasn't to long ago that women couldn't get a no fault divorce and had to stay with shitty husbands. Even after birth control was invented, many places needed a husbands approval. Spousal rape and forced conception wasn't always considered a crime (and still isn't some places). Society and women's right are drastically different than a few generations ago.
Plus more couples seem to consider if they can afford kids before having them than past couples who had kids because that was the next thing to do and then had to "make it work" regardless of their financial situation. Social pressure and choosing being childfree are very different for current generations than in the past.