Comparing automated light rail or other fixed track systems with remotely piloted aircraft is not even a valid comparison.
Just one mishap where passengers are fatally injured and trust in the system will crumble.
How would that Quantas A380 have faired if it were remotely piloted? My knowledge of the incident is that it took all three pilots, each working separate critical action items, to save that plane. I don’t see it happening anytime in near future.