I am not sure in the UK.Not sure how accident/injury statistics are panning out
Might have posted this already but did some work with the Red Cross in Poland. Scooters are everywhere there. You can scan a QR in most pubs or hotels to download the hire app and off you go. When I checked into the hotel I was given a flyer to hire one to save money on taxi's.
Nice idea but I did see a lot of pissed up people on them. From what I saw (only Warsaw TBF) the cycling infrastructure was far better than the UK so that was a good thing for scooters.
The Red Cross person I met there said that head injuries and amputations had gone through the roof since the scooter phase started.
Reminded me of Spain. When I was based over there for work really young kids on mopeds with no helmet, swim shorts and flip-flops were everywhere. Saw a lot of young people on the beach with missing limbs and some hideous scarring.