It’s not quite so simple. Both men and women state the ideal number of children they want to have as about 2.7: https://www.nytimes.com/2018/02/13/upshot/american-fertility.... Our society doesn’t just introduce more alternatives to having kids, it introduces more factors that get in the way or having kids. We’ve structured our society around this extended adolescence, where young people aren’t even really done with school until well into their adulthood. By the time they get their feet under them and settled down, they’re rushing to have a couple of kids before the clock runs out.