These things look pretty amazing. https://www.gogoro.com
The problem is simple. People need access to the roadways in a fashion that grows linearly to low exponentially. But the capacity of the roadway capacity stays constant with an occasional constant bump. Even if you suddenly toss every single driver on a scooter, it's just one of those constant time bumps. You'll eventually bump into the exact same problem of a constant road capacity against an increasing roadway access demand.
You need a way of linearly, and indefinitely, increasing traffic capacity, not one-off constant value work-arounds.
That said the regulation does sounds a bit overbearing
In New York (well, Manhattan), London and Paris it would work even better because you have a subway.
That would also solve the air quality problems of those cities in one fell swoop.
* Gas scooters - particularly two-stroke - are a relic from the past and need to be banned.
So if I can’t get there by walking, busing, train, or biking in wide open spaces, I’m just not going because damn, people in cars sure do act entitled to the spaces where I’m supposed to be and think nothing of swinging that two ton block of deadly metal around in ways that may smear their paint but could injure or kill me with little effort.