I usually put my cart away if the parking lot is full. Otherwise, that’s what they pay the cart wranglers for, to wrangle stray carts. I even used to work at Kmart decades ago as a cashier and wrangled charts when the lines died down, so if the lots not full, and the employees are paid to recover the carts and as I know, it’s a nice break to wander the parking lot instead of ringing people up, idk who is really upset about carts being left to their own devices… It does suck when the wind blows a cart into you or your car, but that’s pretty rare… I do make sure my cart doesn’t just roll off when I’m done, no need to send a cart missile careening across the parking lot, but otherwise I’ve never seen a good reason to not leave your shopping cart in an empty lot.