No drug kicks in so hard on your first use that you are then a slave to it, that is a myth which needs to die. People have problems in their lives and look for escapes, drugs just happen to be a particulary efective one but you could also sink into alcoholism, sex-addiction, chronic workaholism, a self destructive work out regime or, in the extreme, becoming the 45th president
In all of those cases, the solution is to remove the problem, not the addiction which is, in most cases, a symptom of the underlying issue. I'm drinking too much because I'm fuloughed and bored but I'm not an alcoholic because on the days when I have something to do I don't even
think about alchohol, let alone consume any.
DPC's drug may work like that but if so then he's not as good a writer as I think he is.