Restricting class 1 e-bikes and e-scooters that travel under 20mph is not a good move. Class 2/3 sure. Going 20mph can be done fairly easily on a normal bike and people can sprint faster than that. Requiring licensing and plate registration is a system not worth the cost for the number of e-bikes/scooters that fall into that moped category.
Law enforcement rarely enforces speed limits for cars, cities/towns refuse to design safe streets that discourage speeding. We let people, including children, drive multi-ton hunks of metal with minimal training. We let drivers cry about red light and speed cameras enough to make their use illegal. We should address the speeds of far more concerning and deadly 3400lb vehicles before worrying about a 60lb bicycle passing by slower than Usain Bolt.
I’m not saying that micro EVs speeding about in pedestrian zones isn’t a mildly dangerous issue and I’m all for bikes being illegal on sidewalks, but that can’t come until the public spaces that are city streets are safe for everyone to use. This is putting cart before horse and refusing to acknowledge the horse is actually an elephant.