Ключевые слова: adult, african american, banking, black, buy, buying, card, cart, cash, cash register, checkout, consumer, consumerism, contactless payment, credit, credit card, credit card reader, customer, debit, equipment, female, grocery, hand, human hand, indoors, machinery, market, money, pay, paying, payment, people, purchase, retail, sale, service, shelf, shopping, smart card, store, supermarket, technology, trolley, unrecognizable person, woman,