I was in Auckland last year where they have the ride and dump version. The streets were littered with abandoned scooters (not supposed to happen with this system) and you had to keep a permanent lookout for the lunatics doing 15 mph on the pavement. Also saw some interesting consequences of large potholes. the phrase 'arse over tit' popped into my head a lot.
Can't see this being a great success but can see a few boxing matches coming about when somebody crashes into the wrong pedestrian especially later inn the evening now that the pubs are back open.