Well, in my experience, as long as you are comfortable & easy-going, it doesn't bother people. Now, if you're going around, looking every which way, scowling & looking uneased, & nervous..then it's going to unnerve people. Most people don't have a problem with it, in my experience, so long as it is worn openly, with causual confidence, and a person doesn't go around bullying or harrassing people. A knife is a tool--I'm more afraid of an ice-pick or screw-driver. A hammer. Pencils--a classmate stuck one in my leg when I was just a little runty kid, I learned from experience.
Nah, I've trained in MMA (mixed-martial-arts) for several years--I'm more intimidated by more simple implements. Screw-drivers, hammers, mallets, broken bottles. In my own experience, it shows when a person wears a knife but is not comfortable with it, it clearly shows. A friend of mine goes everywhere (almost everywhere) with a folding-knife & multi-tool on his hip. It never bothers anyone. He never bothers anyone. He's friendly, comfortable, and clearly at ease. It's when someone acts uneasy, or nervous, or seems as if they were up to no good--that it will unnerve people.
That knife is hansom, btw, I've never seen anything like it. Looks alot like a bird/trout type of knife.

You'd likely need a customized-sheath for such a tool. There are many makers here, many of them have been kind enough to offer to help me with my sheath problems, maybe they can help you.