Why do young people make terrible decisions? Watch
It's hard to think of any other reason why some are totally crazy binge drinkers - presumably they think their young bodies can take it, as they haven't taken much damage yet (but how long can they run with that one?).
Clearly, people are less likely to make the same mistake twice, which explains more sensibility as we age.
As long as you don't badly hurt yourself or others you'll laugh about it in the future