My favorite version of this is robotic and drone-based package delivery. In many ways it could be useful and add efficiency to a congested system. But then you find out just what it is that delivery people actually do, the variety of security systems, steps and walkways, exceptions to rules, and so on and realize that what drones and robots automate is not really "the job" at all.
The last mile, in logistics, hospitality, retail or elsewhere is not just a mile, it's an interdependent series of several distances each with its own rules and restrictions. Tech-based solutions tend to solve an idealized, abstracted version of these and end up being only a very limited solution if they solve anything at all.
These folks have patted themselves on the back for devising a solution to the last mile without then realizing that the hardest part of all was the last 20 feet.
They'll just ignore that problem, drop the package on my front lawn and then snap a picture for proof of delivery from 50 feet up before flying away. To be fair, at least one of the Chinese international carriers does that every time already -- pull into my driveway, open the window, chuck the package onto the lawn, and then drive away. At least Amazon still brings it to the front porch and 90% of the time even puts it in a spot where the rain does not reach.
if we had a standardized way to deliver packages like we do mail (the heavily regulated mailbox!) this would not be a problem, it's a phenomenal waste of human effort to navigate this uniquely for every location
it's not like a doorman where there's useful social interaction
I have a PO Box (I do not have a mailbox so the city gives me a PO box for free). A kind human gets my packages from the back and hands them to me. It's great and efficient. The only inconvenience is the hours are a little narrow.
Conversely the last step to the door is as complicated as it is since till recently there was no plausible middle ground. You would always be sending out couriers so no real improvements in cost could be made.
But if you can get a drone or a robot most of the way there, that changes incentives.
I would personally love there to be a regulated, standard design for parcel drop off: but there isn't one. Not yet, and no human delivery will use anything I devise properly.
But if nonhuman delivery would, well now everyone looking at new motivation.
last mile in software is real too!