Hugh Grant (left) and the author (right)I like Hugh Grant as much as the next person. His song and dance number at the end of Paddington 2, alone, should guarantee national treasure status.But the actor goes too far in casting a hard stare at all use of technology in schools.Recently, Grant appeared at an event for the campaign group Close Screens, Open Minds – which is calling for the ban of smartphones, tablets and laptops in UK classrooms – and hit out at some schools because of their attitudes towards technology in the classroom.As a headteacher, I am acutely aware of the danger posed by unfettered access to technology.I support social psychologist Jonathan Haidt’s call for access to