Why did Santa, after making a list, need to check it twice?

He’s old. And meticulous!

To see if anyone slipped up and moved to the naughty list !

Take it from card carrying; white bearded guy in the red suit with suspenders and wire rimmed glasses !

@elbanditoroso Fto make sure impertinent little whipper snappers like you are on the naughty list.

Because it rhymes with “nice.” That’s why.

Because he takes his hot cocoa with a little brandy in it.
He drinks a lot of cocoa.

What Dutch said

It’s prudent to check twice.

Like “measure twice cut once.“ He only gets one shot. There are no do-overs on Christmas.

Because there are almost 2 billion children on the planet.
Even though he only visits the ones in rich countries, the poor ones who will not get anything still have to be on the list.

His server keeps crashing and always having to back up off the Cloud and has to compare the backup versions to the hard copies the Elves keep.

I believe you are right on all three of your guesses.

Because he wants the perfecto fish award.

Tattle tale!