A 21-year-old in a dorm buying booze for a 19 year old dorm-mate is a bit different from doing the same for a 14 year old.

What about a 17 year old? 16? Many folks who go to college are younger than people seem to realize... and teenagers of all ages often like to party.

It's very rare to run into anyone under 18 living in a college dorm. There are a few 17 year olds, even fewer younger than that. Sure there are high schoolers taking classes, but as full-time residential students? Not many.