I'm a big supporter of legalized pot, but I agree with GP. In downtown Denver, everything smells of weed, and a large percentage of people seem like they're stoned out of their minds. I'm not even saying there is a solution here, or even necessarily a real problem. I haven't, for example, seen any of these stoned-out-of-their mind people get violent, as I have with drunks.
But that said, there was a noticeable change in Denver when legalization passed, and, at least in public spaces, it wasn't good. Walking around in public where so many people are f'd up, and it's not like a bar or something, is a pretty sad experience.
I dunno. I don't mind the smell of weed. I don't really want to smell like weed when I get to work. It is right next to a park so there's plenty of seating away from the smokers. It is a little annoying to have fewer seating areas, but not wanting to smell like weed is just my preference, and I don't think I've got some police-enforced right to never be annoyed.
My gut says we should treat smoking weed like smoking tobacco -- although I'm not aware of any studies as to the effects of secondhand smoke, with weed.
Pandemic observation: N95 masks don't reduce the smell all that much.