Sir: Andrew Marshall's article about Bluewater shopping centre (Comment, 16 March) claims, "There is not even a fish shop in Maidstone any more. Safeway did away with that." Yellow pages lists two fish shops. Try them; they're good. Then there is the traditional wet fish counter at Safeway, Maidstone. Is it really supermarkets' fault that shoppers choose the convenience of buying fresh fish at the same time as other food, because they no longer want to trudge from shop to shop? Supermarkets are a symptom of social change, not the cause.