I applaud this idea, but at the same time I feel like the use cases where this will actually work are pretty limited. I doubt the scooters will be able to cros

I applaud this idea, but at the same time I feel like the use cases where this will actually work are pretty limited. I doubt the scooters will be able to cross a street or navigate any kind of actual obstacles, so you're going to be limited to corralling them somewhere on the block that isn't occluded by obstacles. Also, scooters are just an awful target for autonomous movement for the same reasons they're pretty crappy to ride: high center of gravity, small solid wheels, and no real built-in self-balancing features (bikes self-balance to a reasonable degree due to having large wheels acting as gyroscopes). If you want to get rid of humans for pickup/dropoff and charging, you'd be better off building super drones that can literally pick up scooters wherever they are and drop them on a roving flatbed for charging. Or at least put an IR strobe beacon on them so they're easier to find either by chargers or locating drones.