IDK, my parents were really strict about most things but when it came to food and drinks they were pretty lax. I was allowed sips of wine and beer from an early age and as a teenager my favorite drink was Sarasoda which had a little bit of alcohol in it. Yum, yum, I wish it was still around.
Now, I hardly ever drink. I don't like beer and will have a glass of wine 1 or 2 times a year just to be social, and usually I don't finish the glass. Maybe because it wasn't forbidden, it lost its appeal?
By the way, alcoholism does run in my extended family - so we were aware of its affects and the pain it causes. Growing up I knew that 2 of my relatives died because of alcohol.