And none of them are without support crew; The crew just doesn't need to ride on the train itself, but rather waits in stations or in depots along the tracks.
I’m not sure why container ships couldn’t be piloted remote if drones are. It’s just that it is cheap to hire a bunch of sailors from the Philippines so automation isn’t really necessary.
Right. You don't always need to have a driver potentially doing nothing 99% of the time. But you probably have remote and station staff a lot of the time.