[mmichaels1970]

Ive never had to pay for a shopping cart

You don’t pay. It’s a deposit. The quarter unlocks a little key chain that connects it to the cart in front of it. When you’re done, you snap the “key” back into the cart in front of it and your quarter ejects. Or, on your way out some other dude will flip you a quarter and grab your cart to shop with and then he’ll take yours when he’s done.

[Delta 21]

Yeah, like at an airport. Ive never seen one of those in a grocery store.