hey
actually i dont have any clue about the situation in japan ..
i googled for a sec and found these links:
Legal Drinking Age
http://www.grsproadsafety.org/themes...e%20Limits.pdf
i didnt really check them .. on the first one you might find something at the links on the side
and here my comment to samurai and godwine:
its not about breaking the law .. its about drinking alcohol
its only that the law is in the way, no ?