Just because scooters can go that fast, it does not mean that they should be allowed to do so. I think speed limits make sense in many situations.
If you ride your scooter capable for going 50km/hr that fast on a road in a 30km/hr zone, you are speeding. Perhaps the same should be true if you are riding your scooter too fast in a bike lane. It should definitely be true if you are riding your bike or scooter on a sidewalk too fast or recklessly.
If you ride your scooter capable for going 50km/hr that fast on a road in a 30km/hr zone, you are speeding. Perhaps the same should be true if you are riding your scooter too fast in a bike lane. It should definitely be true if you are riding your bike or scooter on a sidewalk too fast or recklessly.
How fast is too fast remains to be seen.