Well, to live in America in our lifespans, it's practically essential. Even if you never master it, it's good to be able to fake it.

French is worthless as far as I can see unless your main goal is to take the class trip to France to get drunk and laid. (I went to Italy with Latin club one summer and most of the kids on the trip went for those two purposes, and stupid nerdy me, all I did was take photos and actually pay attention to the tour guides. Never so much as had a glass of wine because I was so paranoid and asocial.)