I know I am young (35 yrs old) by alot of your standards, but I have carried a knife since I was old enough to be given one by my Dad. Alot of guys my age don't carry one or carry one of the clip on style just for that reason. Most of them don't even know how to sharpen them or take care of them. Just my complaint with someone carring something they don't know how to take care of or use. My knife of choice depend on the situation, mostly carry a CRKT, or a Uncle Henry.
If in doubt, cross their eyes!!