I've seen kids entranced by young and old and in between - it's all down to how the teacher acts and the sort of person they are. I've seen old teachers bore and young teachers bore. I've seen old teachers with more vim and vitality then their students.
Actually I agree with you, age has nothing to do with it................in our society: that is its sickness. People fail to mature properly. When they claim their pensions they are no more mature than when they wore nappies. Youth is idolised. Cool has taken place of wisdom. This is a lethal situation. See my post: The world:what went wrong?