A Primitive Technology Disclaimer.
I firmly believe that in Preindustrial Societies, the onus of learning was on the pupil. Anyone who wants to succeed will find a way to learn.
Real learning is an active endevor. We learn best by carefully observing and doing. There will be failures. There will be frustration and tears. Not everything will be obvious nor will the reason for every step be readily apparent. It is not the duty of the teacher to drag every unwilling pupil along nor argue every point to their satisfaction every step of the way. Failure is not something to fear but is something to learn from. If you don't like the teacher or the methods, either suck it up or find another teacher.