My dad used to dress up as Santa Claus and bring gifts to kids at the village’s daycare… This required months of work from my mother to buy toy packs and similar stuff to separate into little assorted packages for the kids. This started before I was born, it was impossible to hide the fact from me growing up, and they never tried to pretend Santa was real, they just told me not to tell the other kids. I had no further questions or doubts to be assuaged.