Thanks for the historical correction. It looks like it was set at 21 for states before Prohibition as well. I'll admit then that research on teenagers is more r

Thanks for the historical correction. It looks like it was set at 21 for states before Prohibition as well. I'll admit then that research on teenagers is more rationalization for keeping the limit where it is, and you can similarly find other rationalizations for keeping/changing other seemingly arbitrary age limits like 18 for adulthood, 16 for driving (and counter-reasons, etc.) Also I may be putting too much stock in the available evidence, e.g. here's a writeup from 2006: http://www.nytimes.com/2006/07/04/health/04teen.html http://www.nytimes.com/2006/07/04/health/04teen.html