My mother is pretty anti-gun & weapon, but she doesn't give me too much guff about carrying and I've had an affinity for bladed weapons since I was a teenager.
My little sister went off to college a few weeks ago and I gave her a "care package" of my own - can of mace, keychain baton, and an nicely broken in folder. When she's home for Christmas I plan to take her shopping and let her pick out her own blade. We did not, and are not, going to tell our mother