I made a decision to not drink when my 22 yo RAS went into treatment- so, its been at least six months since I've had any alcohol. And, we've made the decision not to have any alcohol in the house when he comes home. Not hard for me since I rarely drink- makes me tired and hate that hungover feeling that I get after even one drink. My DH enjoyed having a beer or two (NEVER more) after work- but it was his decision not to have it in the house or drink around our son.
Part of my reasoning was I've come to despise alcohol and its destructiveness, but I also wanted to get a sense for what my son was going through. I've already been in a couple of situations where it was a little hard not to have a glass of wine to fit in with the crowd. And, I don't even like drinking.
Alcohol is everywhere in our society and I know how hard it is going to be for a young man to not drink for the rest of his life.