Ask HN: Why dont we have more Remote Controlled Driving Cars?

Hi,Isnt it cheaper to have a person in a cheap country drive a car remotely. By Driving,I mean monitor the Self-Driving Car and take over the auto-pilot incase of some fatal error.I dont mean that the Person Drives all the time remotely.

Kind of like a VA but for self-driving car

Edit:The Correct Term might be tele-driving