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 also disagree with framing all police as “murder junkies”.
Antagonizing a local police officer is a terrible idea unless you are wealthy and/or well-connected. Most are kind, but not all are, and antagonizing the wrong one can make your life hell.
(I also agree that the vast majority of police are not "murder junkies". But it's also not surprising that a handful of folks like that do join an organization that nearly always manages to protect their members from repercussions when they use lethal force.)