i carry a pocket knife all the time! i'm a normal, everyday guy in my 30's. i use it for tons of stuff. it has come in handy more times than i can count. i use it to open boxes, to cut the plastic packaging on everyday items that i buy at the store (that stuff is impossible to open unless you have some sort of sharp tool). one day i had a problem with my car trunk and was able to use my knife to cut a piece of rope long enough to tie my trunk shut so i could make it home. one time i was at work and brought some leftover steak from the night b4, but they only had forks, so i used my pocket knife to cut the steak so i could eat. theres no limit to how useful it can be! i've used the tip of my knife to open and reset all types of electronic equipment, i've used the tip of my knife to unscrew screws. etc. i think for a guy, it's pretty normal to carry one, as long as it is only used for practical, legal purposes, and not to threaten or intimidate anyone, as in fighting, etc.