I've lived in Palo Alto and Menlo Park since 1987 and I go to San Francisco a couple times a month. I had my bike stolen at a Caltrain station. Someone yelled

I've lived in Palo Alto and Menlo Park since 1987 and I go to San Francisco a couple times a month. I had my bike stolen at a Caltrain station. Someone yelled at me once South of Market. I've seen drug usage in UN Plaza. I've walked through the Tenderloin sometimes which has been unpleasant but uneventful. BART can be scruffy. Maybe I've been lucky. I could list fifty highly positive experiences but the current narrative seems to focus on being negative. I like the quote from Paul Kantner (of Jefferson Airplane): "San Francisco is 49 square miles surrounded by reality."