Comment Re:In Japan they do something like this already. (Score 1) 135
As a long-term Japanese resident who interacts with high-school-age Japanese kids daily (they're my students), let me inform you that that's not the whole story. She may be one of the kids on the straight and narrow, but there are plenty of kids here who don't bat an eye at drinking. Heck, even plenty of the "good" kids do some not-so-legitimate things from time to time, just like they do anywhere else. People are kept in line less by appeals to some high concept of honor or tradition and more by the simple fact that Japan is full of people so there's always someone watching you.
Interestingly, there's less concern over underage drinking than underage smoking - as you say, alcohol vending machines just require you insert money, but cigarette machines require a Taspo card.