ETA relevant links: https://youtube.com/@NotJustBikes https://letgrow.org/
ETA again: I glibly mentioned "being killed by a driver" but of course navigating the typical US built environment if you're under 16 or otherwise unable to drive is a miserable experience in a number of ways even if you survive it. Highways make pedestrian paths unnecessarily roundabout. Parking lots make everything further from everything else. Crossing major roads requires getting drivers to notice and stop for you (harder when you're short!), or waiting through interminable signal cycles, etc.
It may depends on where in the US you're talking about, but in my area none of this is actually true. Although lots of people believe it is.
I agree with you that the risk of being killed by a car is somewhat low though.
330 million people with about the same land area as Europe. Yet people simultaneously think there can be a pretty big difference between, say, UK and Poland, but think that every newsworthy event that happens anywhere in the US is representative of all of the US.
It would be hilarious if it were not sad.