No one knows what fate has to offer.

I've read stories here from guys who usually carry but for one reason or another didn't on a particular day when something happened that would have warranted use of lethal force. Afterwards, no one was injured and the perpetrator caught. Couldn't have ended any better.

Carrying a gun doesn't guarantee a better outcome, it just guarantees an available option that I believe most folks wish to never be required of them.