What do I use a knife for? Hard question, really, but I keep a knife in my bags, each of them, for a lot of things that may happen. Everything from opening boxes delivered to my door to...cutting my fishing line.
Seems that I don't need one often but when I need it, I really need it!
My father always peeled and sliced an apple for us kids. He gave us his knives to clean and filet fish from the Saturday catch. Many times, we needed to tighten a screw on something and one of his knives came in handy.
Kind of a Boy Scout thing with me, be prepared.
Many times I have had to fix the family car, the MGs and motorcycles. Way before cell phones so it was important to fix the car and get home before dark. Knives are tools for me and having been taught by a master machinist (my Dad), I always take care of my tools and everything else I have owned. Keeping a knife around was just part of life and still is. The two recent knife threads even reminded me to take out my Buck 110 folder and clean the brass, it needs it every few months.
So, it is instilled in me from birth to carry a knife or at least have it handy as the time always comes when I will need one.😎