The reason that drunk driving isn't such a big deal in Europe is not because people respect alcohol and don't binge drink to the point of stupidity. Of COURSE they do. But they have fewer drunk driving accidents because fewer people drive. Between astronomical gas prices (we have seen nothing to compare in this country) and efficient public transit, there isn't such an idealized notion of the automobile as national icon.
This country has launched itself into a dangerously unsustainable love affair with suburban sprawl that more or less guarantees that we will always need vehicles, that we will always be dependent on foreign oil to some degree, that we will always have to drive to happy hour and that we will always have to drive home afterwards. Then we wonder why we have such devastatingly high numbers of drunk driving accidents. I'm a proponent of personal responsibility and I'm not advocating for or excusing anyone who drives drunk. But if we want to lower the numbers, we have to create a better public transit infrastructure in this country so that people don't have to drive in the first place.
I agree with others on the driving age component. 16 is too young to drive. Vehicles need to be treated with the same respect as any deadly weapon, and driving is not a privilege that we should be extending to minors. There needs to be far more stringent licensing requirements, driver training and competency testing, and as I said before, we need public transit alternatives so that the many many people who don't like to drive, are not confident behind the wheel and who would rather not drive, don't have to.
As far as campus binging goes, I don't see a solution. It's part of college culture, one I never understood particularly, but one that certainly isn't new and isn't going anywhere. Animal House has been around for a long time now, and it satirized college drinking trends that predated its 1978 release by nearly two decades, back when the drinking age was 18. I don't believe for a moment that changing the drinking age would make a lick of difference in ending that particular trend.
I do, however, believe that the drinking age should be 18. It's purely a justice thing. If that's when you're deemed capable of voting and serving in the military, that's when you should be allowed to drink too.