Supermarkets do not want to stop plastic bags . It cost them almost nothing , and they sell it for 45 cents each .
Furthermore , the plastic bag advertises the Supermarket's brand , which means that they also get free advertising , or rather , their own customers pay through their noses for advertising for them . And the bags are spread all over the country-side , so therefore their brand is spread out even more , at no cost to them
You would say that they could get the same mileage out of paper . Not so , paper bags tear , burn , deteriorate very quickly , especially when wet