An international study based on OECD’s Programme for International Student Assessment, has shown that the British Grammar school system causes emotional instability for many of its student. Not only is the system harming grammar school students, but also the whole system is affected. Many students who attend selective schools suffer under low self-esteem and anxiety. Although the conclusion of experts is to increase the number of state schools, a different approach would be to pay more attention to students’ wellbeing in schools. With special coaching for teachers and parents, unusual behavior of pupils can be spotted more easily and the students can be helped.