From my personal observations it seems like tree climbing is one of those childhood activities that's been pushed aside by newer trends and is fading away, like playing with jacks.
FAIRBANKS, Alaska -- An Alaska man had to be rescued after he climbed a tree for exercise but got stuck upside down by one leg.
Fairbanks firefighter...
We are not simply climbing hand over hand into trees and swinging around in the breeze. We use harnesses, helmets, ropes, carabiners and ascenders. Think "arborist" without the chainsaws.