When my older kids were able to drive. I bought their first vehicles. The rules were........
Get a ticket, the car was mine.
Get in a wreck, the car was mine after it was fixed.
Let the insurance lapse....the car was mine.
Your grades drop...the car was mine till they improved.
They started doing their own laundry at an early age (around 8).
Their rooms were to be clean, not spotless, but presentable.
Any toys or other things that DID not belong in the other parts of the house, were mine until I said so.