I call bullshit. The parents that WANT to let their kids roam free are stymied by "helpful neighbors", aka busybodies who simply will not let kids be alone.
I've seen it too many times: CPS or COPS (!!) called on children "unattended" outside -- even when it's really obvious their parents are watching through a window. Let's ALSO not gloss over the fact that CPS & police are used by neighbors to harass each other.
Let's say the simple truth: *US Culture is a literal abomination and its getting worse not better*