Ключевые слова: adult, business, buyer, buying, card, cashier, cashless, checkout, computer, consumer, consumerism, consumption, counter, credit, customer, display, food, grocery, market, modern, order, paying, payment, person, purchase, purchaser, purchasing, register, retail, sale, scanner, screen, self, selfcheckout, selfservice, service, shop, shopping, store, supermarket, technology, terminal, touch, transaction, woman, young,