Okay, I wasn't asking for censorship, and I apologize to anyone who interpreted my comments that way. What I meant was that for writers trying to easily market their books to an agent or an editor, there's a huge range in YA themes, and I see a lot of books being labeled YA just because of the length of the text, not the nature of the content. Then I look at other books (maybe the "edgy YA" label is the hint), and the themes are as mature, and often even more blunt, than anything on the adult shelves. There's a place where the story becomes about figuring out who you are (including sexuality) and what you're going to do with your life (including dangerous choices) that really matters to older teens more than younger. And in those books, I think the relentless honesty makes them YA as opposed to mainstream adult. So again, I wasn't advocating censorship, and I never would. I was making an observation that as young people become ever more savvy, mature and critical thinkers, as well as more literate, kids keep reading up at younger and younger ages.
It's not that my 12-year-old shouldn't read more mature books that deal with issues of sexuality. Jeez, he watches South Park! I'd rather he have literary choices that give him a more balanced perspective than that.... But he isn't interested. His reading ability is several years above his age, so he could be reading books for 16-year-olds, but he'd rather not. He wants more books like The Lightning Thief--written about kids his own age, funny, hip, and full of battles and adventures. It would be nice if he could easily find more books like that without wading through the YA that he's not ready for. And again, I will repeat, I'm not talking about my deciding for him what he's ready for. I'm talking about what he's interested in.