True, but those places don't put up with the rampant public antisocial behavior on the streets San Fran seems to embrace.
I've been around the world to many dangerous places for work and service, and the only place I saw someone take a dump in public on a sidewalk was in San Francisco. He was 3 feet from one of the public toilets the city had installed (this was 2001, I think they cost $0.25 to use at the time?)
This isn't some new phenomenon.