The reason? The stressful conditions under which they now work. Criticised by anyone seeking a scapegoat for social problems - the Government, parents, the media - they know how seriously they take the job they do and just how hard it has become. They also feel, by comparison with professional peers in the legal and business fields, profoundly under-valued.
The issue ties in neatly with correspondence on the need for child care at school age (Letters, 2 September). The way many parents now order their lives is seriously affecting the nature of the job that teachers do.
Try to imagine the pressure on one teacher from 30 children clamouring for the attention that two working parents are unable to give at home.