Few or none, as long as you don't get drunk. Intoxication removes many inhibitions, and then all sorts of things become likely. Advanced Alcoholism often is accompanied by a breakdown in ethics as the alcoholic does whatever is necessary to protect his drug.
Alcoholism is a disease. Thus, its consequences can only be classed as "moral" issues by stretching the meaning of moral to its limits. Social consequences, however, such as alienation from family and friends, inability to conform to societal norms because of impairment and the urgencies of the addicted state, and so forth, are very much a part of the alcoholic syndrome.
using drugs and alcohol in his teenage years
none, but what you do under the influence of it might not fit your standerds or belifes.
the moral consequences are that you will feel like a dinosaur
Alcoholism is defined as a dependency on alcohol regardless of the consequences.
The consequences vary state by state.
Utilitarianism
The moral lesson of the story is abstinence from alcohol.
There isn't any (:
Consequences
It can have negative legal consequences. However, consuming alcohol in moderation has never been proven to have negative health consequences for teenagers.
A social movement which campaigns around a symbolic or moral issue such as alcohol or pornography.