He is making a list, He is checking it twice, He is gonna find out, who's naughty or nice, Santa Claus is in contravention of article 6 of GDPR 2016/679

Does it even matter? I mean, he enters the house through the chimney anyway, creepy.

By writing a letter to him you are agreeing to his terms, which include delivery by chimney. It's like that Amazon service they were pitching a while back where you could let them deliver to the boot of your car.

Yea, i'm pretty sure breaking and entering isn't legal as it is, why would some creepy bearded fat man who breaks into your house care about GDPR?