Well... thats probably the best explanation on there, apart from the fact its all jumbled, but if u puzzle it together, it makes sense - IMO at 12, if u do not know that santa is a load of shit, theres something wrong (sorry to be rude) most kids actually in general find out on their own accord and don't tend to care... they're just like hey... now i can nag at my parents, and they HAVE to buy it for me, but for the mushroom children, it tends to be a bit scary... u know the mushroom kids.
I know this one FUCKED up family, they don't do anything heinously wrong, excpet blatantly lie to their child. the mother is a lesbian, and the father stays in another room, whilst the mum shares a room with her lesbo friend, which the child calls the lesbo friend by her first name, not as mum, or mum2 or dad - lol. they tell him nothing, he knows nothing... and he's like 13!!! he's uber intellegent, just brought up in the dark, and will believe anything he's told, but wont believe anything you tell him that could mean something he "knows" is wrong. These parents should be scolded and shot! and left for dead. i think thats when it gets really wrong. Also, u will notice these kids have amazing social problems, coz they don't know how to speak up for themselves, they are always "spoken for".
But no, Santa claus and a 9 year are about on parting terms... but it's all fun, and it doesn't hurt the kid, unless he's intent on telling everyone that santa is real, when the kids in the know tell him he's not.