Grammar schools were fine. I attended one myself and, in one sense regret its passing. And the achievements of some of your past pupils seem to be excellent. However, only a small percentage of children gained entry and the others had a poorer education and left school with no qualifications.
I am sure that many comprehensive pupils achieve in much the same way as some of the grammar school students did. I also believe that there are many good teachers. The problem seems to me to be a lack of motivation on the part of many youngsters, a lack of encouragement and guidance from parents and a lack of discipline in schools.
In the past, many parents had little and were determined that their children would do better. This motivation is often seen now in ethnic families. Too many nowadays are happy to fritter away their lives or ruin them with drugs and alcohol.