Well, until you've gotten a call from the emergency room, stating that they think they have your daughter, don't get too much over his case about this. Drinking is a serious problem these days. When the ER called us, and I'm an RN, we went through every possible stage of emotion before the episode was over. We came within about 1 degree of losing our only daughter due to the fact that she cannot refuse a dare. She tried drinking a beer, then nearly drank a whole 5th of vodka on top. She passed out, and was unable to get off the floor as the "friends" all deserted her. If a friend of the family, a young airman, had not recognized her as he was passing by the bar in a taxi (in a saloon-like place in Incirlik, Turkey) we'd have lost her. There are many kids who die from toxicity from their first drinking binge because of dares, fraternity/sorority parties, etc. I would appreciate a judge taking the time to redress the situation in this case. Obviously the kids didn't get it the first time.
These are the sorts of things that happen in a nanny state where 18 year olds adults can vote, drive motor vehicles, own a firearms, and risk their lives for us as soldiers, police officers, and firefighters, but can't walk into a bar and legally buy a drink. If you want people to act like adults, then start treating them like adults. Sure, young adults also got drunk when the drinking age was 18, but more likely, they were drinking in situations where they could observe the behavior of more responsible adults and where there were older, more experienced drinkers to keep things under control. But when the law forces adults to drink illegally behind closed doors, the situation is ripe for abuse.
I look forward to more of your anecdotal evidence.