James;
This is an old story but still interesting: Lost tribe bypassed by history.
My [Cambodian] wife, who is in her thirties, still has some of these jungle/farming skills. Her younger brothers and sisters who have lived in Phnom Penh do not. Most young people only know about Karaoke and mobile phones. Many of the under 15’s think the Khmer Rouge is something their parents made up.
See:
Lost tribe leaves the jungle for brave new world of mobiles.
Help runs out for the lost tribe of Cambodia
I don’t think most people want to copy their example. But their story does illustrate that long term survival is possible for people with skills even if they have little resources. Regards, – F.D.