Public policy scholars speak of the unintended consequences of public policy, the solution of one problem can create others. The drinking age was raised from 18 to 21 as a way to deal with under aged drunk driving, but may have led to binge drinking on campus.
Here is a story about the occasional fatalities that occur when some try to down 21 shots to commemorate their 21st birthday.
Is this a product of a drinking age that is too high? When I was 21, drinking wasn't such a big deal since it hadn't been forbidden fruit for so long. Others point out that by being 18 and drinking in a bar, one is in an environment with far more supervision that exists in a keg party.