Good for you!
When I was a boy I wanted a pocket knife b/c a friend got one and I saw it as useful. My Dad vetoed that until....I joined the Boy Scouts! Mom paid for a new official BSA knife along with the uniform. I promptly cut myself once with the knife, despite warnings from Dad. Doing so is a rite of passage for a knife-owner, I believe.
Fast forward to today. I've almost always carried a pocket knife and found it enormously useful. For my ~30th birthday my Dad finally bought me an Uncle Henry's 3-blade pocket knife about 3" long. It is finely made, always sharp, but difficult to fiddle with and not really very practical. I think of it as his acknowledgment that I am ready to carry a knife!8-) I'm glad I didn't have to ask him for a penis, though!
That little knife always sits atop my file cabinet. Someday I'll pass it along to someone else to perplex them. And I carry a folder of my own choice in my pocket.