I generally agree that the lack of automation for seemingly simpler problems is good argument. However, there are a number of automated subway systems: https:/

I generally agree that the lack of automation for seemingly simpler problems is good argument. However, there are a number of automated subway systems: https://en.wikipedia.org/wiki/List_of_automated_urban_metro_subway_systems#Grade-of-Automation_4_systems https://en.wikipedia.org/wiki/List_of_automated_urban_metro_...