Agreed, but where do you draw the line? How do you determine when a person has had too much or who are too broken to police themselves? Just to be safe let's poison the well by casting the widest possible net and ensure we capture everybody equally.

Only then can we be sure who are the weakest links... the people most ripe for abuse. I suppose the social problem is that there is little motivation to identify people prone to addiction unless you have motivation to abuse that addiction.