This is just being irrational.
Ah, my favourite UrbanToronto line of argument. Someone questions some commonly accepted line of thinking, such as light metro being the unquestionably best tech for the OL, that we need to build expensive subways everywhere, or that automation everywhere is an unquestionable benefit for our civilization, and rather than meaningfully engaging with the discussion, the person is called irrational, behind the times, etc. I certainly don't think there is any shame in being hesitant to unquestionably accept a new technology (or at least there shouldn't be) just because our overlords, who as we all know from careful reading of history are a generous and kind demographic of people who always have our best interests and well being at heart, foisted it upon us and assured us it's safe.
If wanting someone trained in evacuation procedures, emergency evacuations, and who can contact the authorities clearly and accurately on my trains is irrational or paranoid, then wearing seatbelts, locking your house at night, keeping computer backups, looking both ways before crossing the street, wearing hi-vis clothing in the dark, having a first aid kit, wearing a helmet while biking, having Two Factor Authentication, or having emergency contacts must also be irrational and paranoid. I have found in my life that I have not really needed to do any of these things up until this point, but I still do them, because it only takes one misadventure for the decision to do these things to pay off.
I want someone to answer these questions clearly and concisely: if there is no employee on board the train, how does an automated metro conduct an evacuation in the event of a derailment or fire? How does the general public know where to go, or how to avoid debris on the track bed? What about if police or paramedic intervention is required? In a dark tunnel, everything looks the same and no one knows where they are (or even what happened). How does anyone know where they are or how to get help? And no, meaningless platitudes about how the metro systems are safe don't mean a thing. Everything is safe, until it's suddenly not. Of course, the wikipedia article on automatic train operation doesn't mention anything about safety.
So far I have voiced several pressing concerns with automated trains in this thread and I've not had a single one of them refuted, but at least I can rest assured in the knowledge that I am paranoid and behind the times. Stellar debating, I am so much more knowledgeable and in step with the times now