How is Britain seen by outsiders? What marks us out? Humour, self-deprecation, our changing weather, frequent cups of tea. But there’s something else that foreigners say after a spell here: the UK is a place where couples without children worry about where their unconceived children will go to school. As a Scot, I used to think this a bizarre English affectation — until my eldest son announced he’d like to join his friends and take the Eleven Plus set by grammars and private schools.