did/do you let your kids believe in santa clause?

Well, my youngest wouldn't understand but I let my 6 year old believe. I'm not sure if he really does believe though. I don;t see why they shouldn't. I think it is a good thing. It aids imagination and it's fun to believe in things like santa. I think kids will grow out of believing when they are ready and I think my 6 year old actually just pretends to believe.

I Dont have a kid but if i have one i wont let them believe in santa clause as its all myth and in stories!