Hmm, I remember getting in trouble in Kindergarten (at age 4) for kissing a boy during naptime!
My kids vary in age from 18months to 16years. There are 5 of them, so I have a wide sample here. Just so you all know where I'm coming from.
As to the things in this forum being pre-pre-teen sometimes, well, sometimes they are but there really isn't a place where those things fit. Sometimes it's about an issue that doesn't pertain to "the childhood years" because it's more of a growing up problem. And yet, the child isn't a teen yet... so where does it belong? Where does that child belong?
My dd started developing breast buds at around age 9 (late) or 10 (early). She didn't want to wear a bra, but like Ruthla's dd was terribly terribly concerned that her nipples would show through her shirt. She still is (at 12). Now she wears a bra, tank, tee, and sweatshirt most days because she is mortified at the thought that someone might see her nipples through her shirt. And she hates it when I wear shirts without a padded bra, and she really, really hates it when I bf in public (well, not anymore but until very recently)!
I can also remember wanting the underoos because they were more "grown up" than the little girl bloomers and undershirts.
I can remember a particular picture I have of my little sister at about 8 in a midriff shirt and mini skirt, a la Madonna 80s lol.
I think perhaps the styles have changed but the underlying desire for children to grow up has not. I couldn't wait to grow up! My children are much the same. I agree with the pp who said that most kids could use a little more autonomy in regards to their lives and decision making. THere will be exceptions, of course, but most teens are capable of much more than we give them credit for.