Autonomous taxis aren't likely to endure better treatment. Without a driver present, the urge to have drunken sex will be far too strong — and those odds only increase when you add a second occupant to the equation. With nobody watching, we'll leave half-consumed hamburgers and cans of sweetened tea on their floors that will roll around and turn the carpet into a sticky magnet for larger pieces of garbage.
Bloomberg speculates the never-ending process of cleaning other people's filth will cost large firms with autonomous fleets tens of millions of dollars annually. That number swells into the billions when you account for insurance, maintenance, storage, and the accelerated devaluation of such vehicles.