TLIK: “Let’s start with a personal question. How many of your rebbeim from your elementary and high school years do you still keep contact with? If any, why not the others? Keep your answer to yourself, but it will tell you something about that rebbe that remains with you. That is real chinuch.”
Until what age do you expect Yidden who had a healthy relationship with all their rebbeim to keep in touch with them? Would such a 50 year old be calling all his rebbeim from Grades 1 through 12 twice a year? If not, how is your question relevant?
As to the rest of your comment you clearly have a highly negative view of Yeshivos, mosdos, rebbeim and chinuch in general. It is highly unrealistic. You believe some rare occurrences are everyday instances in most of today’s Yeshivos and Beis Yaakovs. They are not; they are rare. Today’s Yeshivos and Beis Yaakovs and the mainstream chinuch system is beautiful, highly effective and works extremely well.
Notwithstanding the exceptions.