I am surprised there are so many children under 12 playing, I had no idea. If I was a parent I wouldn't want a young child to be playing I don't know why it just doesn't feel right. I have a 9 year old sister and her online usage is greatly monitored. She (thankfully) spends most of her time on extra curricular activities or having friends over which I think is important at that age.

Sorry, not trying to put anyone down, just sharing my thoughts. All kids are different too.