All I saw when I was dating my AW was that we both liked to drink beer and have a good time. It wasn't until the pressures of life caught up to primarily her that she slipped into a deeper level of drinking. I on the other hand, don't drink at all. Hell I used to brew my own. Not anymore.
So is the question about people who are Alcoholics or addicts by nature? I mean, I remember stealing brews from my uncle when I was very young. I'm certainly not a teenager in my growth.