I’d be curious what legalizing weed has done to the number of people who tried it for the first time or went from non use to occasional use. I say this because the addiction/safety/outcome of many of these “harder” drugs means that a short dalliance could lead to faster addiction etc. There would be a knock on societal effect if there was an uptick in use, and NA etc are not that effective %wise for people to hop-on hop-off. By this measure, alcohol is just as bad, and while prohibition didn’t stop the flow for those seeking it and increased the safety risks from bootlegging, I wonder if a better example is to look at a country with strict historical prohibition which relaxed those rules (can’t think of an example).