Taking away things that the child has earned for themselves. If your kid is old enough to work and use that money to purchase something for themselves than it's thiers and you have no right to take it. I don't care if it's a car or a playstation 5.
Same thing with the money itself. Just because your kid is old enough to work and bring home a paycheck doesn't mean you're entitled to that money. I personally had to open up a brand new bank account the day I turned 18 because my mother helped herself to over $700 of my money. When I confronted her she basically told me "[screw] you I'm the adult on the account so it's my money too!"