Your post seemed to miss the entire point of the thread. So what if 80 is a bit old for defending against rapists? And If he’s got his pistol in hand—no, 80 is not too old. So the comment is a bit suspect, if not just plain empty headed.
I can’t imagine why anyone would waste their time commenting on the guy’s age instead of paying attention to the problem being discussed.
Let me make a wild guess here.
You have never been in a brawl where the odds were 2 or 3 against your 1.
You sound like a real hot shot.