The Two Futures of Driverless Cars

There are 2 issues that plague the self driving car:
1 - Ethical questions such as the trolly problem. So what happens if something goes wrong
2 - There may always be normal cars driven by humans which are prone to flaws and could incorrectly interact with the autonomous cars.

So we would need a full adoption across many places to fully take affect. Thats why the localised cities works okay because a company could dominate the area and therefore each car can interact with each other if necessary