>Allowing children to explore nature in groups, climb trees, go through bogs, learn dangers outdoors for themselves, under supervision.

It is actually pretty good in this respect, at least in this area where I live. Smallsteps goes to a daycare where they do forest trips often - nature is never far away and for us, it is literally a short walk away. 

> one can only expect results when leading by example.

This is the thing with it. Learning is one part - demonstrating the lesson quite different.

>we all fall short of being the best parent so no badge for that one either.

OF course - so there is always more reason to learn and apply :)