I have observed hoe addictive personalities can apparently come through genetics. I have seen whole families who seem to be just ripe for all kinds of addictions. Tobacco, alcohol, and any kind of dope, seems to truly grab them.
It does seem that if a person is born into such a family, they ought to swear off any addictive substance, even before they start..and don't even consider trying anything that could be addictive.
Then too, there seems to be the "cultural" thing. I decided that I would not participate in the alcohol thing, when I was a teenager, and of course that included other habit forming things..except I smoked a pipe for about a decade in the 1950s/1960s era.
So, my son doesn't have alcohol in or around his home..just "normal" to him. What a person grows up with, is
normal to him.
Of my 3 grandsons, one will have a rare, occasional beer..something he apparently picked up from his
mother's side. They have been separated for 30 years, and although she drinks little, it is something done
in that family that is not done in mine.. She is a nice lady though..
Although my brother & his kids do drink, they don't do so to excess. In fact, I don't know anyone in my direct
family who is addicted to anything, one reason I suspect family culture plays a part in such.