You are such a hoplophobe that you can't even see that the very thing you are so damn afraid of is the very last thing in the world you should be afraid of.
Cops and security guards are already walking around fully armed in full view of the public with no one panicking. With enough of the Joe Ordinary citizens doing the same, there would be exactly the same reaction. None. Make nice holsters a fashion statement again.
FSCK ass back-wards attitudes from wimps like yourself.
Patrons know what a "cops, and security guards", are, they don't know what to make of some civilian, in their midst, with an open, loaded, firearm....Another gem for the genuine stupid!