No I didn't, that's default, BZPower says the same too and their forum is more attractive to younger ones then this forum. However I wrote in the registration terms that you cannot register if you are under 13, if you are, you get banned. The reason is because of child protection stuff that I don't want to deal with.
This is not a generic LEGO site, in-fact I'm saddened you think that. This is a modding community that is focused on LEGO games. The subjects and technical stuff we talk about is directed towards people older than 12.
Yes we have LEGO forums here, but they are not designed to attract under 13's, because LEGO is not a kids toy... LEGO is a creative outlet for any age group.