It is not only wise, but required by the rules given to us by the courts in this matter. If you are thinking about a gun for self-defense and need a logical reason to do so this lesson should do it for you. The total burden is on your to defend yourself and your family. Your primary barrier to being a victim is a very thin and frail barrier. I have been in a police car that in a highly urban area was suddenly the ONLY available car in the entire precinct that had over 70,000 residents.
Few citizens know how thin their police protection is.
If nothing else a simple math lesson explains the problem. A police critic once said if you want to know the quality of your police service to call Domino's and then the police and see who arrives first.