No masks worn in supermarket

The number of customers who do not wear masks is atrocious. Today people come in with a mask and then remove it. A father and two children all without masks. We informaed the staff who asked him to put up his mask but he refused. He stood in a queue without social distancing. Everyone from us kept distance as we have co morbidities and of an age that it could be serious for us if we were to get Covid 19. The gentleman and children went to the checkout and was served with out a mask. We arrived at our checkout and mentioned this so they sent a worker down to tell him to pull his mask up and still he did not. The cashier should not have served him.