Do rebbes get formal teacher training? Learning in kollel doesn’t count. Being able to learn is a different skill set than being able to convey knowledge to a child.
In my 12 years in yeshiva, I had some awful rebbes. When parents complained, nothing was done. The same rebbe who punched and kicked 2nd graders in my son in laws class was still assaulting 2nd graders in my great nephews class.
Are there excellent rebbes? Absolutely. They undid alot of the damage done to me, my sil and my great nephew.
Imagine what could be accomplished if the bad rebbes were weeded out.
Without question, the good rebbes should be well compensated. Where does the money come from?