San Diego, California resident.
I openly carried various fixed-blades here in urban San Diego for many years, and I never encountered a negative reaction, either from the general public, business employees, or any of the many members of law enforcement who saw me carrying it, and I'm a biker.
There was a time when I was reluctant to openly carry a fixed-blade, but then I started using one all day at work, and I didn't bother to take it off when going out for lunch or running work errands. I got used to carrying in public, and so I started carrying all the time.
Then I retired early, and no longer had a daily need for a fixed-blade (or pretty much any knife), and one day as I was putting on my knife I realized that it had been a long time since I used it for anything, so I decided to stop carrying, which itself was kind of a hard decision as a FB had been a daily companion for so long. There were other contributing factors as well to my decision, but lack of need was the primary reason.
Despite my positive experience I can fully understand peoples reluctance to openly carry. I often think about carrying again, but since I started shaving my head and growing my beard, that plus the rest of my biker regalia, I became somewhat scary looking, scary enough without carrying a fixed-blade. If I felt I had a need to carry I would, "need" being the dominant factor, but since I don't I really don't want to scare the citizens unnecessarily. That's my personal version of societal courtesy.
Whatever a person decides on openly carrying a fixed-blade, I say more power to you. It's entirely an individual choice.
These are the fixed-blades I openly carried. There were a few others that I sporadically carried when I was a younger man, but these are the ones I regularly carried for work, and elsewhere.