Oppression, Bro, oppression drives our people to self medicate! According to a recent report three states have experienced a 40Driving while under the influence IS banned and actually carries heavy penalties for being caught doing it.
Banning the action hasn't stopped it from happening.
I think the questions we should be asking is, what is it in this culture that produces so many that feel the need to self medicate themselves into an oblivion to get beyond their everyday lives.