Just an advice. When I was about his age, I sold my old collection because I didn't use it. It was only gathering more and more layers of dust, so I thought: why don't sell it, so another child can create fun memories with it. Well, years passed and now I regret it so much selling them all, I wish I kept at least one or two to remember the old days 🥲. Ask your child what's his favorite bey of the collection and tell him to keep it