I get that it's everyone's right to OC and generally it doesn't bother me. Now when I see someone OC in a manner that's really not a good idea, I want to say something but I just keep my mouth shut in hopes that they will learn from it.
How are they supposed to learn something if you don't bring the issue to their attention? Are they just supposed to use ESP to sense your thoughts and read your mind?
It also makes me wonder if they are prepared to fight back should some 5yo choose to disarm them...especially when often I see them with an arm load of stuff in the check out line.
As someone else said just because it's legal to do something doesn't necessarily mean its a good idea. Yes, to some degree it aggravates me that so many box stores are jumping on the band wagon. But they are right, to many people it makes them uncomfortable. Heck I've been out with my wife and she has seen people OC and always makes a point to point them out to me because it makes her a little edgy...even when she knows I am CC'ing.
Only bad guys hide their guns. The only way to make people feel more comfortable about seeing guns in the open is to expose them to normal people doing normal things while carrying a gun.
I open carry at Meijer semi-regularly. When I do, I generally wear slacks and a button down shirt. I also bring my kids with me and we do our shopping like a normal family. I'm polite to people in the store and offer to help little old ladies get items off of high shelves or put heavy items in their cart. I say "please" and "thank you" when I speak to the cashier. By acting like a polite and agreeable human being, I'm pretty sure I generally don't make people uncomfortable just because I have a gun on my hip. If they are uncomfortable despite all of this, that's their problem. I can't please everyone. But I do expose dozens of other to the sight of a normal guy and Dad, carrying a gun.
It doesn't bother me so much that stores ask us not to OC, that's their right. I will also say that I think part of their reasoning goes back to what happened after the active killer incident at the Walmart when the idiot decided to OC an AR while also wearing a tacticool vest etc at a Walmart. Concealed means concealed and you will avoid unneeded attention and they won't bother you.
Now I will also say we as responsible gun owners need to find a way to bring our "gun culture" more main stream again. To me that is the challenge
Slinking deeper into the shadows and hiding your firearm sure isn't the way to make gun culture mainstream again.
The entire goal of the anti-gun groups is to stigmatize gun owners so that we're too embarrassed, nervous, or hesitant to even acknowledge that we're gun owners. As rhino pointed out, this is out changing the culture and pushing gun owners deeper into the fringes. It's why they call us "gun nuts, ammosexuals, and crazy gun lovers." It's by design. It's designed to stigmatize and paint us as either evil, fringe, paranoid or unstable. If we're all painted as lunatics, then the general public doesn't mind us having our gun rights stripped away.
The only way to push back against it is to normalize it and being willing to have a calm, rational discussion with people when they ask us about why we carry.