40,000 people are killed each year by cars in the United States. We do need to ensure bikes and scooters are not on the sidewalks. The best way to do this is to build dedicated bike lanes that remove bicycles and scooters from the sidewalk and from the road (where cars are too dangerous).

But I can't take humans serious as this stage where 40,000 of us are dying each year and so little is done to prevent it despite it being something we can dramatically improve. But people shake their fist at a scooter laying on it's side on the sidewalk while 7 Eleven says a car drives into one of their stores (through the building) on average once a day.