Since my heritage includes a few of the more hairy ethnicities from Europe, my family is quite hairy and always has been, (you should see my hobbit feet in winter when I haven't shaved them for example - at least they aren't as bad as my father's but still. . . )
When I was young, I had hairy legs before my legs became truly hairy because of adolescence. Early in fourth grade, a then-girlfriend of mine "dumped me" because I had hairy legs and wasn't shaving yet.
My daughter has my genes and though she, thankfully, has a lighter hair color than I, she too already has quite a bit of hair on her legs. I don't plan on pointing it out or anything - I figure she'll let me know when she has noticed and wants to do something about it. However, I was wondering approximately when I am likely to recieve this information/request from her, as most of the kids I have dealt with were students and I didn't pay much attention to whether their legs were shaved or not, or they were way too young. Is there an average age young girls start this practice? It does seem to me, it is fairly likely a lot of girls begin before sixth grade - am I correct on that count?