We celebrate (religious) Christmas but don't do Santa... DS has always known about him though, it's pervasive around here, impossible to avoid. I told him early on, probably his first or second Christmas, that he was just a guy in a costume -- it was more to make sure he wasn't scared of him, he has a lot of anxiety. Sometimes he picks Santa books at the library or wants to get a candy cane from the Santa at holiday events (which is fine with me, my real concern is about mixing Santa in with Christ's birth, I don't have an issue with St. Nick or presents or pretending he's real but I also see no need to lie to DS & I don't think it would be good for him). I don't know if he has any understanding that some kids believe he brings presents etc., though we did do a St. Nick thing (story, gift, etc.) on his feast day last year. Mostly I just reinforce that everyone has different beliefs and that we have to make sure not to push our beliefs onto others or tell others what to think -- this isn't just about Santa, it's something we discuss often in various contexts, but I do try to ensure he won't spoil the Santa thing for others.
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