Automatic driving is totally possible, but self driving cars have a huge problem that automated planes and trains don't. They share the road in close proximity

Automatic driving is totally possible, but self driving cars have a huge problem that automated planes and trains don't. They share the road in close proximity to human controlled vehicles and humans. The huge, insurmountable problem is that people will NEVER accept autonomous transport that regularly kills people and causes accidents, even if the computer driver is better than an average human. As long as self driving cars share roads with humans they will never stop killing people. Humans are unpredictable by nature, and there will regularly be situations a self driving car encounters where death is just unavoidable. When self driving cars start killing people what is going to happen? You can't sue a machine. What if the machine has to decide who dies? This is an insurmountable problem. Cars may drive automatically but there will always be a qualified human sitting behind the wheel. Look at planes, it's a lot easier than driving since there's nothing to run into up there. We've had fully automated flying systems of various kinds for decades. Hell, even the space shuttle could land itself... from space. To this day every commerical flight with humans on it has not just one, but two human pilots. The other big problem with self driving cars is that hardly anyone needs them. Cars are built to transport people, and it turns out people are pretty good at driving. So the vast majority of the time there is zero need for the car to drive itself. In cases where it would be convenient we already have cruise control type inventions and automated lane following. So what about trucks? For one, if people won't tolerate a 3000 lb piece of automated steel killing people occasionally they sure as hell aren't going to tolerate a 80,000 pound piece of steel doing the same. So why don't we make special roads for the automated cars and trucks and hitch them together so they can't hit each other? We've had this for over 100 years and it's called a train. Basically, automated cars with no humans behind the wheel will never happen. This gets rid of most of the advantage of a car driving itself in the first place. Also, if humans need to be able to take back control there goes all the advantages of packing cars close together on highways and stuff too.