I’ll repost:
I don’t think money is a stopper for items that you don’t want your children to have; they can always steal if they really want something. I believe the critical point is to communicate with your child and explain why your rules exist, and be up front about the rules. If your child has good reason to make an exception, accept it.
However, be firm about “my house, my rules”.
DY, thanks for the plug.