Over here in Germany we face the same problem with binge drinking which led to a significant increase of hospital admissions due to seriously intoxicated juveniles, often only in their early teens. One even died and the innkeeper who provided the alcohol was condemned later on.
Glad to hear your son is doing well. It´s one of the things that get more important with aging, that you are more and more thankful for your kids doing the right things
Keep well, Graham and good work on your house project (we are busy in the same issue at the moment),
anaesdoc