Anecdotally... Many of my neighbors started smoking when it was legalized here. Neighbors on both sides toke pretty much every day in their backyards. Well actually at first they vaped mostly, that wasn't so noxious, just occasionally caught a whiff of it. Now it seems they have figured out they can buy weed from the resident dealer for a lot less without all those pesky taxes, at least I see them talking to him a lot more often these days.