I've seen this too, being someone who lives in a vehicle myself. Minivan in a Kohl's lot with kids and parents spilling out of it just loitering, toddler up on the dash. There's another pair of cars in the area that seem to be a homeless couple, and they occassionally have a ~7yo kid with them. It'll be 10pm with these trash mountain cars parked at the edge of a massive gravel lot, and the kid is just running and playing on the grass edge like nothing is out of the ordinary whatsoever. I'm guessing it's a partial custody situation of some kind.