I regularly take my eldest daughter (33) my now almost 7year old grandson & 3 year old granddaughter my 16 year old son a friend his wife & 3 boys 9-15 years,camping in woods cooking on log fires.
The boys are given lessons on using knives & axes like those suggested in the article.
Before Christmas after asking his parents beforehand I gave my grandson the perfect first knife a Frosts of Mora "CLIPPER" in stainless steel (at age 7 years my daughter his mother had and could competently use for feathering fire wood & preparing food etc a 7" blade "Ontario" US Marines knife which we still have) I also gave my grandson a 1lb Kent pattern axe, I only had to remove 2 dings in the blade after a weekends firewood chopping, he did well feathering a few sticks with the knife.
However as suggested in the article all knives are locked in my briefcase (after cleaning) & the selection of axes put away.
I believe if taught respect for knives as TOOLS as I was, it will prevent problems in later life.