In my current work, I think a lot about skills loss. If something was a wanted skill 50 years ago, and folks live to 3-score-years-and-ten, then you still have LOADs of people around, 40 years on, who learned the skill, even though it was declining, when they were aged 20, who are now only 60. By which time, it can have passed into a romanticised, gentile hobby. Or a differently romanticised, geeky hobby. Or hobby/bit of teaching / bit of well-it-is-an-artform income generation. The skills of making daguerreotypes (for example) is not lost.
I have friends who knap flints. Not to make flints for flintlock guns, but to make projectiles to kill animals (or capable of killing them) - friends who are living in the same country as friends who follow ancient religions (family never converted from Norse paganism, choice to follow Druidism). Skills are at least as persistent as religion, from what I've seen.