In London e-bikes have basically take over delivery of small stuff. A decade or so ago they tended to use motor scooters but there are a lot less restrictions on e-bikes.
In Australia too. They don't follow any road rules and ride on the footpaths at insane speeds. They're not actually legal - I believe the law is that if they can go over 17kph without pedalling then they must be registered, have indicators, etc. But nobody seems to do anything about it. I guess some elderly pedestrians must die before something is done.
Plus cars kill thousands of people every day, and we just sort of accept it as a natural fact of life. Why is a bike going 20kph suddenly a problem?