People judge you until it's useful. If I received a dime whenever I've used my pocket knife to cut steaks when everyone had only picnic plastic knifes I would be rich by now.
Also: I'm a lifelong nail-biter and I'm basically screwed for lots of little tasks if I don't have some kind of blade on me. (The struggle is real <wink>).
¹— a new habit is keeping a pair of work/utility gloves in my bag at all times. I have enough pairs so I don't have to shuffle them around. When SHTF/The Big One/WOROL happens, being able to protect your hands will be a huge differentiator.