I don't live in an area with scooters. I never got why the parking/littering was a problem. They know who rode the scooter last = who parked there right? Coul

I don't live in an area with scooters. I never got why the parking/littering was a problem. They know who rode the scooter last = who parked there right? Couldn't they fine the people leaving them in the middle of the sidewalk/dumping them in rivers/whatever?