snogging at Hogwarts

Some of my colleagues have heard me complain about the lack of sex at Hogwarts, and how much this bugged me. I don't have any prurient interest in hearing about Harry's sex life - can't stress that enough. But I do feel that given Rowling's fearlessness about moving the books from children's literature to teen lit, it's odd that she never mentions all these co-ed boarding school students snogging in the halls. This bothered me because I tend to think that showing violence (but not physical affection) in books and movies for children and young teens is usually limited to the U.S.; I'd hate to see this idiocy spread to other countries. Why is violence more acceptable?
I'm not going to give away spoilers about the new book, but suffice it to say that Rowling has finally decided to put snogging into Hogwarts.
Before I started in on the sixth Harry Potter, I read The Boy Who Loved Anne Frank by Ellen Feldman and Elske by Cynthia Voigt. Elske is a favorite of mine, despite the misandry. The Boy who loved Anne Frank was interesting - not sure it's a classic for the ages. I dislike fanfic and alternate history as a rule, because I like to keep the real world very distinct from fiction. But I figured this one was pretty safe - Peter van Pels died in 1945, after all, and so a book about his life after the war wasn't likely to get confused with anything else in my head. I'd love to hear others' opinions about this one; I'm still not sure what I think. My library has Anne Frank, but not Peter van Pels or Otto Frank, in the subject headings; that's more accuracy than I'm used to from them.
On my to-read pile: Paladin of Souls by Lois McMaster Bujold and Shadow of the Giant by Orson Scott Card. I'll read Card first, I think, so I save the better book for last. Card is writing just barely well enough to hold my interest in the series; I'm expecting a barefoot and pregnant (and probably weeping - you know how women are) Petra. Ugh.