Obviously I'm not a law officer, but I'd like to answer that question anyway.Would YOU be troubled by openly armed citizens?
Yes I would be troubled. How would I know or anyone if the person carrying the sidearm was a legally licensed, stable individual? For that matter how would a law officer know? A person's appearance doesn't necessarily define their mental or moral state. A person could wear a thousand dollar suit and still do harm just like a young man wearing a hoodie could be a Rhodes Scholar on his way to school.
When you get to be my age you have learned you don't take anything at face value.
This isn't the Wild West, thank goodness.