Everyone to note.
Once my mom explained to me as a little girl why the gifts that Santa Claus brings lie on the sandwiches until his hour X.
And now I, in turn, tell her son in her words that Grandpa can't have time to get around all the apartments and houses, so he transferred this care to his parents, and he goes only to those who don't have anyone and gives them not quite tangible gifts.

PS: It’s a pity that now I know: those, other children want to find material gifts hidden by moms and dads, but that’s a different matter.