Yep.

I can understand the importance of consent, because even though the possibility exists that a person might enjoy something they haven't consented to, it's simply not ethical to force another person to do something against their consent, and what's more, they might end up hating it even more because they didn't consent when they might have enjoyed the same activity had they consented to it (and why should they be spoiled on the joys of sex just because some creep decided to "initiate" them before they were ready?).

But this whole adult thing... What is it about sex that makes it an adult-only activity? Yes, that's exactly the way most people think about sex - it's something that adults do (and teens who are 'pretending' to be adults - which they actually are). I think it might be at least tangentially related to the concept of puberty - which, in oversimplified terms, suggests that children are incapable of sex before puberty, and capable (and interested) only after puberty. Except that we've come to ignore the physiological signs that indicate that a person is ready for sex, because we've imbued it with all this baggage that we don't think a person can 'navigate' a sexual relationship until they've put several more years under their belt and are a fully mature adult (never mind that people don't 'become' fully mature adults any more concretely than children become pubescent adolescents - it's a messy, gradual transformation that everyone undergoes at different rates - and while most kids eventually hit puberty sooner or later, some people never seem to reach mature adulthood).

What's more, we seem to have come to the conclusion that sex means penetrative intercourse, and that if a person isn't developed (and intending) for procreation, then to have sex is an immoral choice. Never mind the 'doctrine of pleasure', in which a person of any age, and any developmental state, can receive some measure of enjoyment from some manner of a great variety of "sex play" activities. But no, if a kid likes to strip off her clothes and grind against your leg, it means she's at risk for being raped, or some stupid thing, because she's not ready to begin her sexual discovery, and because we apparently don't hold rapists responsible for the rape they commit - we're convinced that the girl is responsible in all cases for 'acting sexy', and that the best way to prevent rape is to force girls to be as unsexy as possible - against their natural inclinations. This is true for adult women, but doubly true for underage girls for whom even 'consensual' (as far as nature is concerned, not the law) sexual activity (not limited to penetrative intercourse) is legally considered rape, and criticized by the majority of the public.