Meh. For centuries kids worked alongside parents or as apprentices to adults.  They weren’t roaming around unsupervised.  They were busy learning to be adults.  I think the public school system has made everyone lazy at child rearing.  No one wants to do it, so I guess the new theory is that kids should just teach themselves?  

I do agree that kids should be learning to do dangerous adult stuff, but they also need supervision.  So, instead of learning by experimentation like these kids, my kids by 6 learned with an adult how to set a proper fire in a fire pit and how to also not burn down the forest.