Thy will not mine be done.
I wish him the best of luck but I'm certainly not expecting much. Perhaps he should talk to my friend Bobby D.
IMO alchohol and its pervasiveness is (from the psychological--not physical POV) a bit like a cult. Until you have been "deprogrammed," it is really hard to imagine a world on the outside.
As a good friend of mine who quit drinking when I quit says (another "moderate" drinker), "before quitting, I was just living from "cocktail hour to cocktail hour."