They've had the perfect design for decades. Take a look at NASCAR.
The cart itself is already a full body cage with rollbars. The PLACEMENT
of the CHILD outside and on top of the rollbar cage is the poor design.
A padded seat on the lower tray of the cart [flotation or padded seat
device at any K-Mart] with straps to hold padding in place. Possibly
padding above the head also in the lower tray. Remove Child seat. And
Enclose the lower tray. If it tips, only thing damaged would be food in
top tray. Or anyone in the way of the falling cart. Course if you have a
child inside the lower tray, center of gravity would make tipping much
harder.
Even better than the car design in front of the cart. Childs only
partially enclosed. Turn the entire cart into a NASCAR with the child
driver enclosed UNDER the top tray and enclosed.
Add theft devices to signal when the cart leaves the parking lot.
Conflict of Interest:
None declared