Has it become common for banks to have no hat policies indoors?

My local WF has instituted this. Wear a hat indoors, no service.
They caught me off guard with it, pissed me no end. Mostly it was the attitude of the suit who approached me while in line. Mostly it was his "You Must, or Else" attitude.

Been thinking about it for several hours now. I'm just not seeing how it's a positive change.

Other than the obvious "it lets the cameras see your face", best I can figure is, it quickly sorts the robbers, who wear obscuring accessories from them that don't. I also expect the immediate result will be for the crooks to focus on the remaining banks. Forcing them to join in on the policy.

At some point, this is just going to make the crooks up their game.