<p>Actually, we have data on the 18-year drinking age. It doesn’t work. One of the reasons it doesn’t work is that 18-year-old high school kids start regularly supplying alcohol to 14-year-olds. Teen drinking is now well lower than it was when the drinking age was 18. (And binge drinking is far higher in countries with lower drinking ages.) However - it is also true that, while the overall data don’t show it, binge drinking among 18-21 year olds at colleges is likely higher. This has more to do with the change in beverage choices (alcopops, hard lemonade, and the so-called “malt beverages” - which are simply a legal fiction, as they really aren’t malt beverages at all), than anything to do with the age thing.</p>