Dad taught me how to sharpen knives on whetstones...60 years ago? Until about 10 years ago I used a two grit stone I bought 50 years ago....and it looks it. 10-15 years ago I bought one of those Case, three grit stones on a triangular block and have used it since. I can put an edge on my pocket and skinning knifes I can shave with. That's sharp enough.

Handing down the skill, I taught my oldest son. When he was in high school, 30+ years ago, he made a bit of spending money sharpening classmates pocket knives for $1.00 a blade. We lived in a very rural area and most kids were farm kids and pocket knives were more to be expected than grounds for being expelled.....or jailed. It was just before the time the US started its race to the bottom of the septic tank. It was a small school, there was 28 kids in his graduating class.