The fact that the other teen had family near Rome (and dual citizenship and pretty good Italian) is also interesting and I bet Elder's family thought it was a great idea to send their alcohol-loving (and certainly drug-interested) teens from suburban Marin County to...Rome...without adult supervision. My first thought was that this was the Marin equivalent of sending high schoolers to Mexico (Spring Break or otherwise). If they're drinking at home (illegally) and not handling it well (drunk in public), sending them to a foreign country where they can drink legally is not a great decision.
But I know, I'm a wet blanket and it's important that kids have fun. Parents want the kids to have fun (but not in their house, right?)