Having a scooter is a God-send for me as I have mobility issues.
The law is that scooters are supposed to drive on the sidewalk. I realize that there are discourteous scooter drivers as there are discourteous car drivers.
Myself, I always slow down when I come close to a pedestrian.
I do have signal lights on my scooter and a ridiculous horn.
As for taxes, I pay just like everyone else, only mine is through my rent.
There are driver courses for scooter owners and some should definitely take the course but don’t paint us all with the same brush.