Well South, I am 56 years old and growing up, dad didn't own a gun. He died from cancer at age 75, not from an intruder. Mom died of injuries suffered in a fall, but not from a home invader. I've made it over 40 years on my own and haven't been involved with any altercations involving guns. If I had thought that gun ownership would have let me keep my mom and dad a few years longer, I would have been first in line to purchase an AR15 when they became legal.
Your people have been lucky. Many thousands, just within the USA haven't shared your good fortune. Even then President Andrew jackson once had to personally shoot an intruder in even the White House.
For additional food for thought; read up on the statistics for increased home invasions in England and Australia alone after public disarming took place.