Seriously, I don't understand how this is meant to work, even on the 'happy path'. I've never done any Santa stuff in my family except stockings with small presents + fruit, so the stakes for make-believe are low.
Do the children ask for stuff and then the parent is on the hook to buy it? What if it's too expensive or unavailable? Just a massive disappointment on the day? Does the child expect that it's some kind of binding contract?
Children's imaginations are wonderous, flexible things. As an adult I have sometimes found it a weird experience to play along with my child because my brain keeps trying to delineate between reality and imagination. So who knows how the it's perceived when you're writing a letter.
But if this really does sound realistic, isn't it in danger of leaving the imagination space and setting an expectation?
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