Please be open and very honest with him. Sit down and discuss alcoholism and the dangers involved. Talk with him about how easy it is to cross that line into an addiction. We never had any trouble with our son when he was a teen, so we never talked with him about how easy it is to become an alcoholic. He went off to college and joined a fraternity. I knew he was drinking, but didn't know the extent of it. He's a recovering alcoholic now at age 22. It never entered our minds that this would happen as we have no history in our family and we're not big drinkers. Your son is so young. Warn him and keep your eyes open to problems.