I agree think it's a joke but still don't get open carry when you can unless you are LEO and on duty. Just my thinking
In surveys done on convicted felons 60% admitted that they avoided committing crimes when they knew the victim was armed. About 40% admitted they would avoid a target they "thought" was armed.
With the average person's chance of needing their gun being so low, a further reduction of 60% would seem to nearly eliminate it. That alone seems like reason enough to me.
Armed and Considered Dangerous: A Survey of Felons and Their Firearms, James Wright and Peter Rossi, Aldine, 1986