I did not say all are a myth. Well we know there are about 230 criminals shot and killed in defense each year. Then there are 50 or so stories that make the news each year. They happen, but not in any significant numbers.
You stated that "most of them are a myth".
How do you know that if there are no "real statistics"?
The number of criminals shot and killed obviously leaves out the number of criminals shot and wounded, and the number of times that criminals were deterred with just the presence of a gun.
When you said that "none" of your carry friends have defended themselves, were you only counting the ones that shot and killed criminals in self defense, or all of those that used a gun, in any fashion to defend themselves from a crime?