Earlier quoted context omitted.
Someone, potentially a start-up, should develop an appnfor that! Just imagine how much customer data you could collect! Ideally with some in-store location tracking to improve customer surveill... ahh, I mean customer experience! And so good forbthe environment, because no coins!
You mean something that would unlock carts based on fingerprints? :)
Plus, since every cart is matched to a person, no more vandalism or theft!