I don't get what you mean, electric scooters are already a thing? At least in most countries in Europe they are classified the same type of vehicle as pedal-assisted e-bicycles and are capped at 25km/h and can ride in the bike lanes. If they go faster they are classified as full motorcycle and have to ride on the road with the cars and requires a license and a license plate (regardless if electric or non-electric).
Pedal-assisted is very much not a vestigial category, plenty of people want to get exercise and not just ride a scooter. On top of that they massively increase the range of the bicycle and the bicycle is still usable when the battery runs out.
https://dualwheeljourney.com/mopeds/swedish-moped-class-1-an...
> get rid of the vestigial pedals.
Pedal-assisted is very much not a vestigial category, plenty of people want to get exercise and not just ride a scooter. On top of that they massively increase the range of the bicycle and the bicycle is still usable when the battery runs out.