"...one for common sense and decency skills ..."
I'm not sure if it would count as a skill as such however it is something that a few folks need to learn.
Leave no Trace.
"...one for common sense and decency skills ..."
I'm allergic to fish, so there is absolutely no benefit to me in learning to fish. I'm also pretty much vegan these days, so again, it just does not factor into my life skills.
I can make good fishing line and nets though and I can can source and prepare the fibres and make the cordage necessary too.
I'm sorry, but when you wrote that you don't eat fish I assumed that you were yet another one of the "meat yes, fish no"-folks. Vegan is good, and I must learn how to make cordage for fishing.
leave no trace would replace which one?
It is possible for people to simply not like a food though - ie. the taste of it. My wife doesn't like the taste of most fish, I'm not about to force her to eat it.
Of course, but a lot of "fish hate" is just bad habit.
Tony's original list is a good starting point and is the syllabus of the majority of schools introduction to Bushcraft style courses.
I would question the order and suggest that other skills are important too.
collect and clean water
Firecraft
Shelters
Edge tool use
Foraging
Fishing
Cooking
Knots
Navigation
Swimming
In the UK for example collect and clean water. Is this an essential skill? Most babbling brooks are going to be fairly safe to drink from. We are fortunate not to suffer from the wide range of water borne diseases found in other parts of the world. Plus the majority of bushcrafters are going to be bringing their own water with them. It's not a survival skills list.
Swimming is an essential life skill and everyone should be able to swim but is it a bushcraft skill?
Likewise I am passionate about first aid. I believe everyone should have a good grounding in practical first aid and have the confidence to use it.
Foraging is nice. Leaves taste like leaves. It's a skill that's good to know but I question if its an essential skill. The average adult male living in the woods is going to need 3000 calories be per day. That's a shed load of hawthorn leaves and ground ivy. Hunting and trapping again it rocks some peoples boat but not mine. Great if you have the land and a very good working knowledge of the law.
So I would lose the Swimming and the Foraging from the list.
Swimming would be fun to learn. But I never learned like many of us. Maybe I'm too lazy or stupid. Perhaps thats why we use canoes. No need to swim.
Fish are both easier to catch and healthier to eat than "our friends with feet or wings", so maybe you should think about it?
As far as what I think an essential survival skill is that everyone should learn (bushcraft is a choice; learn what you want, sink or swim- operate within your limits) is how to properly clothe yourself when you leave the house.