re: Why Not Simply Ban Traffic Stops other than

1. The driver and the owner of the licensed vehicle are not always the same.
2. How will they enforced drivers licenses if there is almost a zero chance anyone will be pulled over and checked for driver's license.
3. Part of the point of pulling someone over is to stop them from committing said violation. If you are caught speeding and simply sent a ticket in the mail you could end up having numerous violations without even knowing.
4. People don't always live at the address connected to their license plate.
5. No more stops likely increases the chance of seeing automated speed traps and the like. I find getting dozens of speeding tickets in the mail from hidden speed cameras far more unsettling than being stopped by a person.