Just proof you can't be too careful. Anyone who asked to see his ID and Ga Weapons Carry License did due diligence.
What if he were a felon and you didn't ask to see anything?
Might need a lawyer. You can not be too careful especially under the current administration.
You have no legal requirement to ask anything. If you are OK with buying into the antigun liberal logic and taking steps that are not required by law and have zero effect on crime be my guest. As for me, I'm following federal law. Nothing less, nothing more.