So it should be 16, not 15 or 14? And should the age of consent match it? Since kids are so mature and responsible by that age.

Edit: Oh, and they should be able to sign up for the Army at that age, too? The voting age was lowered from 21 to 18 because of the absurdity of drafting teens into a war when they can't even vote on yet. I would have preferred the opposite solution - raise the draft to 21.