Not op, but a parent. When my kid was young we left that question deliberately vague. I didn't want him to be the kid who goes around and says in Kindergarten "my dad says Santa Clause doesn't exist", at the same time deliberately encouraging a belief into something I know is not true felt morally wrong, so when he asked if Santa is real I woulf typically answer along the lines of "I'm not sure, what do you think?"
I don't remember ever believing in Santa when I was a kid, but I also didn't grow up in anglo sphere where that question seems quite important the growing up process.
I don't remember ever believing in Santa when I was a kid, but I also didn't grow up in anglo sphere where that question seems quite important the growing up process.