That’s what I mean. Scan a device on the cart to connect the cart to your payment app. Then just start putting things in the cart.
But how do the items you put in the cart get scanned? That’s where you’d need the implanted chip or code, right, that gets read by RFID or something? If you rely on the barcode getting scanned, you’re still relying on the customer to do it, instead of just dumping items in there and not paying for them.
I mean, you’re basically describing the Amazon Shop experience, where the customer connects their paying method to a cart, the cart senses/scans the items you put in, and you’re automatically charged … but that requires sensors/chips/codes implanted in each item that the cart automatically reads.