In all seriousness, and I know this has been used to troll before but let's bring it out of that context:<p>I feel that if you are old enough to go to war and risk your life, you are old enough to have a few beers. Now what that arbitrary age is, who knows. But you shouldn't be able to join the military before you can drink in my opinion.<p>Now from experience, with the drinking age between 18-19, there is little difference at parties compared to the US despite the difference in drinking age. At 16-17 a lot of kids start drinking and are quite irresponsible with it. At 18-20 people begin to mature and handle drinking a bit better, with a few going to the extreme and drinking excessively regularly. At 21+ people tend to lose interest in drinking and gain interest in socializing at parties.<p>(Anecdotal evidence obviously)