Every family has different traditions.
My father always gave 50 cents for the Afikomen, then again my parents set $10 limits on birthday and Chanukah gifts, These things were just not that important to waste large amounts of money on.
The first time I attended a Seder at a friends house when I was about 12 (mom was in the hospital) I was shocked to see the kids demanding large gifts from their father to ransom the Afikomen. I don’t like it.
Our grandchildren get a book or small toy, that’s enough. And with all Pesach costs, it’s not about the money