[hanspeter]

With per-per-minute sharing cars having existed in many cities in Europe 10+ years, this concept is not new.

People will adapt to the level of cleanliness in the car the get into, so it's a slippery slope. Users will behave respectfully in the early days (maybe because they are first-movers), and then it deteriorates long term.

My own experience is that people used to not even leave an empty soda bottle in the cars and now I see remains from take-out in the floor, coffee cups, chewing gum left around the dashboard etc. You can report this to the car service, but they won't be able to take any meaningful action on it.