I think the number of real uses for a knife are limited unless you use it to cut up your food. You could use a knife for a million things, my point is that without the knife you simply camping? They are lousy for chopping wood, whittling is an un-wouldn't do 999,000 of them and not suffer. I mean what would you HAVE to do with a knife besides fight with it, while essential sport, few people use their knife for surgery, and I can eat my food with my hands and no knife. I never have to strip insulation from a awire for instance, while camping.
Furthermore, if I am actually going to attack the reasonableness of carrying a camping knife, then lets start with the multitool concept. Unless you are in the woods on a mechanised conveyance - what are you gonna use a bunch of tools on? They are a total waste of weight except on some expeditions where real time repairs might matter.
I think a fingernail clipper is about all the cutting device I really need.
Jim