Well when you put it that way

You can carve things into wood without knives, ya know.

Well, there is such a thing as a pocketknife. I would carry one around if I wouldn't get arrested for bringing one to school.

I carry a pocket knife with me pretty much all the time, unless I'm going somewhere with a metal detector and cant (airport, city hall, etc). I know plenty of guys that do the same thing

I would. To fend off any unwanted creeps. Oh wait, I just described myself.

My brother seems to just always have his pocket knife on him