I fucking hate this and it makes me tense up every time I see it. When I worked at another retailer many years ago we had to stop people from letting their kids stand up or ride on the bottom of carts like that, so it's a bit odd to me that Target doesn't have that rule, too. Of course, parents tended to be total assholes when you told them their kid needed to sit down to avoid doing a header onto the concrete or keep their little fingers from being crushed in the wheels, but I've definitely heard kids start crying from having said fingers crushed/pinched, and that's definitely worse.