Scooters need to be charged every night so juicers collect randomly abandoned scooters before the complete battery failure that would prevent company running the service to track its fleet. So charging for time up to infinity may solve the cost problem on the operator side, doesn't solve the societal problem of scooters left in random places. Where I live scooter users are charged extra if they don't deliver the scooter to a predefined location but that's not enough of a deterrent.