Ключевые слова: account, adult, banking, banknotes, bill, budget, buy, buyer, cash, cashier, checkout, client, commerce, consumer, consumerism, contactless, convenience, cost, currency, customer, different banks, digital, dollars, economic, electronic, expenses, finance, grocery, machine, male, man, modern, money, pay, payment, payment card terminals, person, price, purchase, retail, sale, self, selfcheckout, selfservice, selfservice terminal, service, shop, shopping, store, supermarket,