Addendum.

I've heard that kids who spent their teen years during the pandemic have all sorts of misfires with basic socialization, and that shows up in all sorts of weird ways when they make the transition to college.

I wonder if that turning up the music at like three-thirty in the morning during a Halloween party was something like that, where beyond basic late-night drunkenness with friends they weren't even processing basic social expectations from neighbors, even far below the basic perception gaps that can occur at that age.