Perhaps cities should take simple first steps to regulate without overburdening bike/scooter shares. Portland has designated spots in the downtown core that are reserved for car shares (not any specific company but you can't park your personal vehicle there). Maybe one every 4-5 blocks. Why not do the same for bike share?

We have a docked system already but Lime scooters litter the sidewalks all over town. Why not remove a few car parking spots and require scooters be parked there? One spot could hold many scooters and keep them off the sidewalks.