Kroger Tells Customers To Not Openly Carry Gun In Its Stores

Kroger, with nearly 2800 US stores, has changed its policy to prohibit open carry of guns, except for law enforcement, aligning with Walmart's similar policy. Both companies are responding to recent shootings, including incidents at Walmart, and are advocating for gun reforms. Kroger had already stopped selling guns to those under 21 after the Parkland shooting.

What exception does Kroger's new policy have regarding the carrying of guns?

What specific change did Kroger make regarding the sale of guns and ammunition to customers under a certain age?