It sort of sounded like I was criticizing the particular presenter, but I didn't intend that.
The woman actually does a great job of hitting the basics and every kid ought to see the video.
But the era we're living in where anyone can start posting videos, as if he has something valid and useful on YouTube, has gone beyond what is practical. But that's the YouTube world today. I just checked YouTube on knife sharpening. If there are less than 200 videos on knife sharpening, I would be surprised.
KKF ought to consider having pro-members submit some short sharpening introduction videos with various individual sharpening techniques & the reason to pick a technique. Lots of YouTube videos are 15-45 minutes long & some are beyond an hour. I'm never going to watch even a 30 minute sharpening video.
I've been sharpening now for over 70 years all the way from a little single hand stone, to larger ones & up to rotating diamond laps in my machine shop. There is a lot to gain from understanding the breadth of techniques out there. I'm sure some members here have developed their own quick techniques to use when they are in a pinch.
Some techniques that are most useful might be what to do when you actually have a damaged or broken blade. What do you do? You can't just start fixing in on a stone, unless you have days free to do mindless strokes.