I voted 8-9. I think Santa should be discussed with kids by parents before being discovered some other way. I know 2 girls that are 11 and they're mother is sure they don't believe, but wants to leave it at that. I believe it would be good for a parent to sit and discuss and let the child ask questions. My Mom told me and I understood I was upset, but took it well. I would have hated to just have found it out myself and my parents to just assume I knew and not talked to me about it. This mother I know says she thinks the girls won't say anything because if they don't believe they won't get any presents. I think thats terrible. I personally would want to discuss it with my child. It also gives them reason to come to the parents if they have other questions knowing they can ask questions and be told the answer truthfully.