Turkish President Recep Tayyip Erdogan has suggested the constitutional change to guarantee the right to wear a headscarf in the civil service, schools, and universities should be decided through a referendum. “If you have the courage, come on, let’s put this to a referendum,” he said in a televised address. “Let the nation make the decision,” Erdogan added, speaking to the leader of the main opposition party Kemal Kilicdaroglu, who had initially proposed a law to guarantee the right to wear the veil. In response, Kilicdaroglu on Saturday night rejected the idea of a referendum, accusing Erdog…