Brevard County is also known as the Space Coast.
I live in Pennsylvania where open carry has always existed, yet in over 70 years of life I have only seen holsters on someone’s hip a hand full of times. Most people who want to carry will get a concealed carry permit. The open carry guys are typically trying to make a statement, not protect themselves.
Due to the many engineers and technicians employed in the launch business, the GOP in Brevard County has long had a libertarian, populist conservative vibe, along with a laid back, surfer element that the business community caters to. The US gun maker Kel-Tec is also based there.