So maybe your logic holds true where you live, but where I live I'd prefer to have a gun because in the event it does happen I'm completely alone and royally screwed without one. Plus target practice is fun.
Out of those little more than a handful are real accidents, the rest are people being careless. If you follow the three basic rules of gun handling, there'd have to be some serious accident for anyone to get hurt: 1. every gun is loaded, always 2. don't point your loaded gun at anything you are not intending to shoot. if your gun is not loaded, see rule 1. 3. don't put your finger on the trigger unless you are going to shoot whatever is in front of the gun