Well of course your level of fear will be affected by your specific situation. For sure there are fearful situations around guns.
But many peoples’ reactions and fears around guns is mostly illogical, based on their limited experience around guns, with much of their exposure showing guns being used to hurt people on TV and video games. I know someone whose fear is so great it includes cops. If she was standing in line at the grocery store behind an armed cop she would envision him turning around and shooting her for no reason.
Now like I said, one has to put things in context. Some guy with a gun tucked in a waistband, yelling at you for cutting down trees is probably a prudent fear. But say some guy open carrying at Walmart shouldn’t illicit the same fear. Most gun owners harm no one with their guns. But the assumption that they are all dangerous and the fear some people feel around them is as irrational as assuming some guy in an elevator is going to rape you, or the black guy walking towards you down the street is going to mug you.