Here's my take on it.
If the US did lower the drinking age to 18, I think for a while there would be a few dumb kids who would go out and get trashed and get thrown in jail...
BUT, if you think about it, maybe kids under the age of 21 already drink. Some of the kids' parent's even BUY them alcohol. After high school graduation, maybe of the students go to house parties and get trashed anyways, so why not make it legal so you don't have to arrest kids on the night of their lives?
Seems like a weak arguement, yes, but I lived in Singapore were the drinking age was 18 and I couldn't see many problems with it. Considering Singapore has one of the lowest crime rates in the world, yet the drinking ae is 18 should be reflective on how they handle things.
If the drinking age IS lowered, I think there should be harsher punishments in place for people who are caught drinking and drink or selling alcohol to minors. The more harsh the punishment, the less likely people are to do those kinds of things.
Although, I couldn't care less about the drinking age, I'd rather the GAMBLING age to be lower to 18. When I was in Holland I won 60 Euros in the casino, which isn't bad since I went in with 20. (I was broke). You can't gamble in America till you're 21. That is so lame.