Not owning a car
What if you said Tristan that you were not allowed to buy any car, no matter how cheap or expensive?
Even if you became a billionaire or a trillionaire, you were not allowed to buy the Porsche, the Tesla, the Lamborghini, the Bentley, the Rolls-Royce, etc.
Instead, you were only allowed to rent cars, Uber, or just borrow a car.