You are not wrong, its good thing to protect the house, but its more important to protect your son from him self accidents can and will happen as soon as my son was born the first thing I did was buy a safe
Kids get curious. Even more so when you are not there to supervise. Any time you do not have a firearm in your immediate possession when kids are present, LOCK THEM UP! Every year many kids are killed by mommy or daddy leaving a loaded pistol laying around. If you live in a $hitty neighborhood where you feel a need to be armed in your home 24/7..... move.