Used to work in Kent. Loved my job, hated that awful town.

Everything I know about Kent I learnt by watching Almost Live (eg https://m.youtube.com/watch?v=6JOQbwVJjxY). Seems to be a worse version of Renton.

If your already in a mobility scooter, I could see it being modified to work in ebike mode. In a way, it's even more convenient for you because you don't have to lock it up or park it anywhere.

Mobility scooters make poor eBike platforms due to the direct electric drive, small radius tires. Hitting 10+mph in a mobility scooter is not likely to happen without serious modifications that are more costly than welding two eBikes together.

The world record is over 70mph but yes, seriously modified http://www.colinfurze.com/fastest-scooter.html

But you can foresee a mobility scooter that was designed to go 1-20mph comfortably? They take up so much space and weigh so much you could probably make them street legal electric motorbikes.

Mobility scooters are designed to operate in pedestrian spaces, including indoors. Ones capable of 20mph would probably get banned from pedestrian areas, indoor operation, malls etc for the same reason you wouldn't let someone ride an electric motorbike up the corridors.