sounds like the after parties often lead to alcoholism and drug addiction.
If that’s what you’re worried about then don’t send your kid to any college. Booze, babes and drugs on every campus across the USA. All you can hope is that you have parented to the best of your ability and instilled some common sense and morality into your kid. He’s probably going to have a few drinks, maybe smoke a few joints and engage in some unprotected sex, but it’s all part of the college process.