I think there's so much more to it. once they're remotely operated is quite easier to install an ai in the control loop.

it will first be training only. it will then start taking off the less risky task, like driving the lift to parking space after being used. Human will be gradually moved into facilitator jobs, taking over the difficult situation, and ultimately supervision only

however I am left wondering why, in the midst of the autonomously driven vehicles hype, people are focusing on the messy, unpredictable road environments instead of working on these kind of in-between situations that are harder than an automated warehouse but simpler than the public world.