"Santa Claus is a great game we (our culture) plays. Every year we pretend (x) (y) and (z) about someone called Santa Claus, and pretend he's real! Do you want to play this game too, or would you rather not?"

and

"A lot of other kids really enjoy the Santa game. So don't spoil it for them. Like when you're playing being a pirate captain you don't like it if another kid says you're too young to be captain or your cardboard pegleg is fake..."

Kids more easily accept games and makebelieve, and happily hop into different games.

(2 kids, 4 3/4 and 2)