Thanks to all. Despite HER objections my son watched some videos with his boy and they had a good talk.
And thats as it should be. Dad is the best instrument for dealing with boys
You can search youtube for videos on how to build self-feeding campfires that keep going while you sleep and other tricks that might interest him.
Here is a start:
https://www.youtube.com/results?search_query=+how+to+build+campfire
Undoubtedly the best conclusion.
Good job parenting your son, and residual good job on his raising your grandson.
Times change, as do parenting techniques, doesn’t mean the new ones are wrong.
Thanks for sharing, reaching out, and giving us the result, such that it is.
Get off HER back,normal for for kids to light things.