It's a question to bring up a conversation relating to costs. What if scooters are a fad? What if autonomous vehicles eventually make the cost of transport less for due to the added cost of having to pay people to pickup and move the scooters back to their high demand pickup locations?

There's further analysis that could go into this - to then decide if or when it is a reasonable idea to cover the cost.

Another consideration/question is that I believe in many places the tax on gas helps pay for infrastructure, and I don't know if electric vehicles have this tax to cover the same road-related costs.