Do your older primary-aged DC still believe in Santa / Father Christmas? DS(9) has made a few comments for the past couple of years about it being a fairy story and has now said he doesn’t want to visit a Santa/FC this year as ‘that’s for 3yo.’
He hasn’t outright said he doesn’t believe but I guess he’s wavering. I mentioned this to SIL in a general conversation about Christmas recently and she really snapped at me that she hopes DS doesn’t tell her DD(8).