I live in San Diego California, where it's legal to openly carry any size or type of fixed-blade. It's illegal to carry a concealed fixed-blade in this state. I openly carried fixed-blades here for many years, wherever I went, and never received (or noticed) any negative reactions from the public.
I had carried a fixed-blade on and off since I was a teenager (often concealed in my younger days). But it was as an adult working a freight shipping dock when I started carrying consistently, and legally (openly). At that job a fixed-blade was a valuable tool to have, and I got accustomed to having it on my hip all day. Some of my friends and coworkers carried fixed-blades everywhere they went, and taking encouragement from them I started doing the same. On some occasions it came in handy outside of work.
I was fortunate to retire early, and post-retirement my need for a knife dropped to almost nothing. After going about a year without having any need for the fixed-blade on my belt, I started to question the point of carrying it. And after a few other changes in my life, carrying a fixed-blade just became impractical for me. It was difficult getting used to not having it on me, I felt naked without it, but eventually I got used to it.
I also never encountered any negative reactions from members of law enforcement from my fixed-blade. Even though many saw me carrying, some close enough for me to read their name tag.
I'm an old-school biker, I look the part, and on one occasion I walked into a fast food type restaurant where about 6 cops were sitting at a table near the counter eating. I walked right past them, placed my order, and stood near the counter waiting for my food. The cops and I were the only customers there, and being cops I have no doubt they all saw me (I'm pretty conspicuous). I stood right in front of the cops for a good while with my knife facing them (third one down in the pic), but not one of them said a word about my knife, or to me. I got my food and left.
Below is a pic of the various fixed-blades I carried consistently (only one at a time). The top one has a 4" blade, the other three have 5" blades. I started carrying them in back pocket sheaths, but then switched to low-hanging belt sheaths to prevent my jacket from accidentally covering them.