TIL it’s the right of women of all ages to go topless wherever men can in the states of Wyoming, Utah, Colorado, New Mexico, Kansas and Oklahoma, including all their cities.
It's certainly legal to be that one random dude sunbathing in Delores Park during the handful of days that are warm enough. The rest of San Francisco is rocking jeans and a light jacket / hoodie. That is the official Bay Area dress code.
Reminds me of something...I think it was Stormy Daniels or some similar figure talking about her first time working in a strip club, and a local law said that nude performers had to be on a "stage," but there were no technical specifications for said "stage" so they had small raised platforms not dissimilar to a cargo pallet for the girls to dance on near each table.