I have spent 2 months in SF over my life and have never felt unsafe while walking anywhere. My last trip there I walked probably 10 miles/day on average, including through some worse neighborhoods, and 1) the walks are way nicer than anywhere I’ve ever lived before 2) never felt unsafe.

Did see a few guys smoking crack lol but you see those type of people in every city if you walk around enough.

I currently live near downtown Los Angeles and it’s 100% worse than SF, but still tolerable. SF is just so beautiful, it’s hard not to have a good time there. Not so true for LA lol.