I love this thread.
I've mentioned several times that my dad has carried a Buck 110 (or Craftsman version) of some flavor for the last 50 years. As an avid Harley rider in his youth back in the 1970s, the 110 was seen as THE biker knife in all the riding mags back then. That said, as a contractor, he has found the 110 to be the perfect work knife. It's robust, cost effective, great warranty, easy to sharpen, and the clip point blade is equally useful for cutting things on the job site as well as digging dirty grease out from pivot points on the backhoe.
When in doubt, I have always known that a plain Jane 110 would be the perfect Birthday/Father's Day gift. When he retires (if he ever does), I plan on getting him a custom 110 made.
For me, I will be hard to pin down just ONE knife that my daughter will see and think of me. In the pic, I've included my EDC. For the last 4-ish years I've carried a Microtech OTF almost every day where legal. I also rarely leave home without the CRK Inkosi. This one is the knife I am most proud of.
After dropped out of college after 4 years in my 20s, I decided to go back and earn my degree a few years ago. One of the things they recommended was to plan on a reward for myself as a tangible representation of my hard work. I decided that I would finally buy a CRK when I graduated. Like my dad and the 110, the CRK represented THE grail knife 20 years ago in the knife magazines and on the forum when I was back on college for the first time. Spending THAT much money on a knife seemed impossible back in the early 2000s. After 2 years of late nights, early mornings, lots of self doubt, and 56 page project...I earned my Inkosi. I even got to buy it from Spark's shop
However, if I am honest with myself, most people will associate me with a multitool. Unlike my dad who uses the 110 for EVERYTHING, I have found having a small kit of tools on my hip has been more beneficial. Have a clutch of implements that can be pressed into service is preferable over JUST a blade. My daughter especially has seen her dad complete all manner of "impossible" toy repairs or quick fixes on a vacation. She's 12 now and has at least 4 multitools/SAKs. I think my motto of "A good multitool augments your imagination" is rubbing off on her.