I was born and raised in San Francisco.
Drinking beer, smoking cigarettes and smoking weed are extremely common here in the bay area. Cigarettes are fading out but smoking weed in public doesn't even bother people anymore...not even the police officers.
Those who haven't experienced getting high should at least once in their life. If you don't want to smoke then eat a pot brownie or something.
That's like saying you're sober when you visit the planetarium or laserium...