>>1624240Much stricter conditions for approval of driver's license and more work to maintain both the license and your vehicle, with all the added cost, there would be fewer drivers anyway. And we'd assume they're vetted much better than the who-gave-this-man-a-loicense drivers the DMV churns out every day.
Also
> Must chart your route> Must declare yourself to a controller before driving and within a radius of high-traffic spots> "2-second" driver separation becomes "10-minute" separation