1. the schools in SF aren't good. For the high tech/affluent denizens who place a high emphasis on education, of course they are gonna move out to the 'burbs for top API scores! Duh!
2. High LBGTQ population, who historically have not had as many kids as hetero counterparts.
3. We are ALL SO WORK-driven! Who has time to pro-create!?
“San Francisco is the best city for childfree living,” says Karen Foster, author of No Way Baby! Exploring, Understanding and Defending the Decision NOT to Have Children. “As the frontrunner in alternative lifestyles, you have to do a lot more than not have kids to be considered odd in San Francisco. I lived there from age nineteen to thirty-two and was never once asked when I was getting married and/or having babies. It’s a place where the childfree may roam free.”