Since pro pot people like to compare pot against alcohol then answer these questions: Did alcohol consumption go up or down during prohibition? Did alcohol consumption go up or down after prohibition ended?
It is impossible to say how much alcohol consumption was effected by prohibition. Obviously normal measuring methods were not around, Al Capone wasn’t paying taxes on what he sold. If you use cirrhosis deaths as a proxy, prohibition decreased alcohol consumption by between 10-20%. Obviously not a perfect measuring stick. For what its worth, despite being legal, alcohol consumption has been going down since the 80’s.
How do you explain the lower use of marijuana in Amsterdam compared to the US?