A long time ago I was told "Don't bring that (1911), you won't need it!"- he was wrong.
Another time I depended on someone else to provide me a weapon when I didn't have one- I was wrong.
Never trust someone else for your safety, it is YOUR responsibility first.
After my vacation overseas, I carried a badge for eight years. There are some EVIL people out there, and you never know when the SHTF.
Everything stays locked up, except the one that stays on me. It is easier to keep it on me than put it away and take it out all of the time. My wife got used to it, and was even glad once or twice.
I trained both my sons, one carries and one doesn't. Their choice, no one else's. I carry a pocket knife, small flashlight, credit card, cell phone in the truck, fire extinguisher in the kitchen, and a pocket pistol. My choice, no one else's.
(aside: the two biggest fallicies (sp) I found as an LEO: 1) People think "It can't happen to me". and 2) when it does, "I must have done something to cause it". Both wrong. Sometimes the SHTF.)