Cars, as operated now, are inefficient. You zip off in your new Matiz, while others have to jump out of the way as you speed past polluting a common atmosphere with toxic emissions. Our cities are choking to death with air pollution and horrendous traffic congestion. Because there are no controls, no incentives to limit the ever-increasing rise in automobile use precisely because the costs are not borne by the user. Everyone wants a free ride.
Nobody wants to pay.