Life is about probabilities. However, whether one wishes to let probabilities influence their "do's and don't" is up to each individual, and each situation.
Case in point - Many of my neighbors will only consider buying a BIG-arse (and more expensive) SUV's because the statistics show one is far more likely to survive a crash in a BIG , versus a small vehicle. I understand the physics of the argument. Nevertheless, many of us drive small cars because they are far more fuel efficient, cheaper and fun/nimble to drive. But to each their own.
The bottom line - If the safety of you and your family is paramount, then probabilistically speaking, there are many other things more critical to minimizing your risk of injury/death, than not owning a gun....although that very much depends on where you live and your personal liefstyle.