My eldest son got me a card and money for my Christmas. I had planned on putting money towards getting myself something in the next month or something. So anyway, the youngest wants to go and see the new sonic movie and I don't really have the money for it until next month. Do I use my Christmas gift money for it or do I at the age of 13, teach him that he needs to understand about boundaries? For context, I hate going to the cinema thanks to people like Drew.