Just inside the entrance of Joseph’s Fish & Chips is a map of the world full of little white sewing pins. Customers of the chippy are invited to mark their home nation — and the display reflects a wealth of diversity. “Hello traveller!” reads the sign below. “We’re delighted to have you here. No matter where you’re from, we are all friends sharing good food and great memories.”The notice goes on to quote the Oscar-winning American actress Shirley MacLaine’s famous line: “The more I travelled, the more I realised that fear makes strangers of people who should be friends.” As...