Neither really.
It’s a personal choice. As long as they don’t drive or do anything stupid to others, I think they should have fun. Ii’s not cool as potential addiction is not cool, but it’s not a mental problem either as I both drink and eat junk, knowing very well neither does me any good at all.
Hope that was a decent answer
We all have mate. That doesn’t make you a bad person.
Just strive to do a little better every day