That's not the only reason ... but part of it.
He didn't know (before I showed him some youtube videos) Tommy Emmanuel either.
His guitar playing is good and he could answer all my questions, but still ... something was missing. TG is a fabulous place and any real life teacher has to be (should be) aware of what's going on and what's possible on the internet. Mine wasn't. I showed him all the interesting stuff and he got the money

Although this is the teacher's corner ... maybe you could write why either you "fired" your teacher or what students told you why they no longer wanted to pay for your service.
Cheers
Birgit