Personally, even when day hiking, I always have 3 methods for making fire in my pack. I would say most casual hikers and folks who get in trouble, don’t carry anything to make fire and don’t have anything to boil water in. A shelter doesn’t have to be much - I always carry a couple of 39 gallon trash bags & a silver survival blanket and with those items, I can make a quick shelter to stay dry/out of any rain & hopefully, avoid hypothermia. Most folks can hunker in a makeshift shelter and make it a night or two & hopefully, they’ll be found. Again, it all depends on where you are, the weather, and how provisioned you are.
I was thinking survival, like fell out of a plane, or Naked and Afraid,..
One tool...(always take the machete), and stranded.
Hiking,crap, you can always flick your bic,
Do you watch Naked and Afraid? You’d like it.