Packs of kids ride bikes up and down my street all day long in the summer.
...While bozos on Nextdoor and elsewhere continually screech that they must be "up to something," and "where are the parents?" and other NIMBY horseshit.
These are the same dim bulbs who bitch about Kids These Days spending all their time in front of their screens and never going outside. Gee, maybe that's because every time they do go outside you try to call the cops on them?
Is this a specifically US problem? As a Dutchman I can attest to the fact that kids are biking just as much now than they were during my own childhood, probably even more (and much more safely).