It's worthwhile to note that there are currently driverless metro lines in the world. We do seem to be moving in that direction for automation. https://en.wikip

It's worthwhile to note that there are currently driverless metro lines in the world. We do seem to be moving in that direction for automation. https://en.wikipedia.org/wiki/List_of_automated_train_systems#Grade-of-Automation_4_systems https://en.wikipedia.org/wiki/List_of_automated_train_system... As always, the future is already here - it's just not evenly distributed.