Who says the kids are too old to go see Santa? I mean, maybe the magic and the mystery is gone from the whole procedure, but we can still have fun messing with Saint Nick at any age, right?
Just look at these kids. They know not that no matter what they do they will never escape the icy grip of Santa's hoary paws. They may cry and squirm, but there's nothing they can do to escape. Santa has taken them as his own, and for them we weep.
Or laugh. That too.