Bushcrafting must be a very exacting thing, because apparently it can only be done with a very specialized knife meeting an exacting set of specifications. At least that's the impression I get from all the posts I've read over the past couple of years asking if certain knives are suitable for it.
I would think almost any reasonable knife would work, but for some reason it seems to be that if you don't have a guardless knife with a Scandi grind them you're just not equipped to survive in the wild. Forgive me if I don't understand.
Thicknesses (spine measured one inch from the handle):
Old Hickory paring knife (well worn) 0.062"
Old Hickory chef knife (relatively new) 0.075"
New Mora Clipper (carbon) 0.085"
Traditional birch/laminated Mora 0.104"