But you are right, no one has to be prepared to defend their family. They can pray their attackers will be merciful and not harm their family and they can wait for the police.
I'm glad that is not the example my father (& mother) set for us. And my father never shot a hand gun until I taught him around 70 yrs old. But he sure didnt leave our lives up to beneficence of criminals.
I have no desire to shoot anyone and I certainly would rather retreat ANY DAY than deal with courts, juries, and legal costs. My ego is less important than the practical side of things.