Actually I have no idea what The Kids Today are or aren't doing, but I do think the hysteria about teen sexuality has actually increased quite a bit since my day, and I grew up at the pinnacle of the IF YOU HAVE SEX YOU WILL DIE era. The sexytime was certainly discouraged back then, but I don't remember anybody actually being surprised when it happened. It was discouraged, but still expected and normal.
All right thinking people tend to nod their heads at the basic notion that delaying entry into the sexytime game is a good thing, because... well, uh, because! My "throw me out of polite society" take is that several years of sexual frustration during your high hormone years probably isn't such a good thing for your general psychological health, your attitudes about sex, and gender relations.