I beg to argue the point!
With the knowlege and the basic tools of survival anyone can survive. It is the will that is key.
Give me a means of fire, an edge and for comfort a means of storing water and I think I would manage fine. Toss in a cooking impliment and hey a blanket or tart and life is large.
It is mindset or so I beleive. And the thing is so many people today rely to much on technology and all it has, to turn it off is a real mind warp.
I fully admit my two foibles are coffee and the internet. Take either of those two and I have issues, and beer too okay but no, I can go a few days without beer.