It is very important. If the merchants don't check carefully and consumers don't care, there will be security hazards in credit card consumption.
During the "May Day" holiday, a reporter and his friends consumed in a tea house. When they paid by card, the cashier did not ask for the ID of the cardholder and did not check the signature on the receipt, but finished the transaction carelessly. However, when consuming in another supermarket, after swiping the card, the cashier asked them to sign on the receipt and then hurried to serve the next customer.