My knives are tools and nothing else. I know they are tools and I carry them as such.
My EDC knives are in their sheaths in my jacket pocket or in my backpack.
However, used wrong they can be used as weapons, so does cobble stones, bricks, pipes, showels, cars, airplanes, boats, anything.
They are not black and full of serrations and other combat-ninja-swat-rambo features, just because other people shouldnt think that I am a mass murdering knife maniac. The second reason is that if the cops show up it is more likely they just dont see or ignore my tools because they are just that. My Fallkniven U2 cuts box tape as easy as a CQC7 wave. The difference is that it might take ten seconds for me to get the knife out.
I might have the "right" to carry a combat-swat-death-kill-rambo-knife when camping but it might still scare people. I do doubt though that the police will see the "need" for a 8" combat sword in a trailer park.
The whole "protection" concept is a new thing over here, even though people have been carrying knives since the wiking age. Only "bad guys" carry knives for protection or to threathen other people. regular people either carry small knives like SAK or multis to open boxes, cut string, open letters, food containers, USB stick packaging, cut shrink wrap, tighten the odd screw and all those small things that annoys you. If the police stops two people with two different knives, dressed the same and so on the guy with a SAK will most likely pass but the guy with a more "combat" knife will surely be questioned. There are actually court rulings on this.
If I need an EDC tool knife I pick a multi or a SAK or just a small folder and keep it in my pocket. The box or string or whatever does not attack me in two seconds.
If I need an EDC weapon knife I would pick a Sykes Fairbain or similar. "Excuse me mr enemy, just imagine that I am not here. I have to find my knife somewhere. then I will stab you".
Have a nice christmas.