Actually its very easy to teach , it doesn't need lots of practice just a small amount of initial instruction . A thing that catches most out is " gadget obsession " it takes only a flat abrasive and mostly the right sort of fluid for the stone you have and proper grit progression ( except diamond stones I should these really do need to stay dry ) first time i had use of one i oiled it with kerosene a big mistake but it was the first time with a new tool . Remote teaching of motor skills is pretty tough to do though unfortunately.There are any number of very good videos out there on free hand sharpening with stones. The problem is not knowing what you need to do. The problem is learning HOW to do it. And that, like any precise motor skill, comes down to practice - lots of practice. And, like all precise motor skills, the early phases are very disappointing.
Ultimately, it’s something you have to really want to do for the sake of it - like fly fishing or restoring vintage vehicles. Many of us don’t have the time, the patience or the interest. We just want an efficient, repeatable way to get sharp knives. And that’s where the various tools come in.
I get very fed up with freehand purists getting superior about it. You might as well get superior about the fact that you make your own sourdough bread or hand carved the banister for your stairs. Oh… wait…
will put up my video when i get my head around the how to post it , tech is not my thing

