It depends on age and situation. I know some very wealthy people that make their children work to pay for their things so they would have an appreciation for what they have and not just expect everything to be handed to them.
When our daughters returned from Seminary and worked, we covered all their expenses, provided they saved their money for when they got married. If they wasted it on nonsense, we wouldn’t have done so. B”H, we had responsible kids, so we weren’t worried about them being spoiled.