The average person ability to make and fix their own tools. Build and fix their shelter.
Free range childhood.
Average person getting dirt under their fingernails.
Being in sync with sunlight cycle.
Stargazing at night.
These are off the top of my head (I'm not op).
“acquire food from nature (farm, hunt, gather) and cook it for themselves.”
Or
“make and fix their own tools. Build and fix their shelter.”
(Culturally, those tasks often specialize by vocation, gender etc.)
You said 50%, you said 15-20, you are speaking in absolute terms.
I'm pointing at trends.
Do you deny the trends?
While unstructured, this kind of standard life knowledge was intentionally and systematically passed down to most boys in every community I lived even when in elementary school. It was expected that you knew how to do these things and men would go out of their way to teach you if you didn't.
Kids did fishing, trapping, hunting, building out camp sites, etc for fun when I was growing up and it was generally encouraged. Learned helplessness wasn't really a thing.
This started to die out decades ago. Most zoomers I know didn't have anything like this experience.
> A shifting baseline (also known as a sliding baseline) is a type of change to how a system is measured, usually against previous reference points (baselines), which themselves may represent significant changes from an even earlier state of the system that fails to be considered or remembered.
[0]: Wikipedia: https://en.wikipedia.org/wiki/Shifting_baseline.
[1]: Earth.org article that reads nicer: https://earth.org/shifting-baseline-syndrome/