One industry that is very close to full autonomous operations is aerospace. In a controlled environment with less things to run into. And even they disengage the Autopilot in certain conditions. Why would we aim at full autonomy for cars in an uncontrollable chaotic environment with a lot of stuff to hit under all circumstances? In some countries you are not allowed to drive with summer tires in winter for safety reasons. So why not limit self driving capabilities in similar fashion?
From the business perspective, this would not be desirable because it destroys a lot of prospective business cases for self-driving vehicles. Basically all of them that are as-a-service. What good is a taxi service that stops working during bad weather? That's even when there would be more demand for it because people don't want to walk or bike anymore.
Says a lot about some of these business ideas, doesn't it?
But in all seriousness, if self driving cars are not ready as fast or as performant as expected a lot of these long term bets may be in a lot of trouble. This potentially includes Uber, Lyft, Tesla by self-declaration, and others.
