... just most people don' have the guts to do it....
I am too old to run or fight, and I don't want to advertise, so I keep things out of sight when I can. IMHO, open carry makes people nervous, and draws attention to you. With concealed, I am just another person.
I open carry around the yard to to the neighbor's / family sometimes. I have open carried into town a handful of time. I think a lot of it comes down to where you live. In Dover you will get a lot different response that in Harrington, Greenwood, or one of the other smaller towns.For me it is a matter of a right not exercised is easily taken. Also, the fewer people who open carry the more jarring it is to others.