cortilla, there's a sort of ruthless inescapable logic there. To develop a pilotless aeroplane, you have to invest incredibly heavily to produce automatics with enough redundancy to replace a human pilot (who really doesn't cost all that much), and then invest with a limitless horizon to beef up those automatics to cope with significant external factor failures like damage to the vehicle, weather and infrastructure failures!
When I start seeing train services (and not limited transit vehicles) without drivers and vehicles on roads without drivers, then I'll start seeing what's coming, but for now, it's a fun thing to speculate about, but nobody of this generation will climb aboard! We got 50 years folks!