To each his own. I do not live my life either in fear or build it around guns and SD. I don't go to bad areas, don't go to bars, and live in a nice neighborhood. Sure there will be the Charles Mansons as long as mankind exists, but I don't bother with worrying about them. Can you imagine that I do no carry at home or in the shower??
Somehow I have managed to live a relatively long life, and all my friends also, without a violent encounter. I am glad I did not build it around worrying about the Mansons or any other thug.
Mostly I now carry a P3AT, and am not concerned about whether or not it is enough on any given day.
Ecclesiastes 12:13 *¶Let us hear the conclusion of the whole matter: Fear God, and keep his commandments: for this is the whole duty of man.
14 *For God shall bring every work into judgment, with every secret thing, whether it be good, or whether it be evil.