If you do a short experiment wherein you sort of tinder-hop - take a tinder profile from one city to another via GPS spoofing - you'll find that san fran is probably the worst place to find young dating women (ages 20-35).
This is backed up by the dating age male to female ratio and my own anecdotal evidence. The bars in the bay area are pretty bleak.
Dating is a big part of my life as a young guy, and the main reason I choose not to live in the bay area.