Gun Control No doubt, owning a gun decreases the average life expectancy of the owner. Mostly because gun ownership makes suicide attempts much more likely to result in death. And of course most gun deaths in the US are suicides (not murders). In addition, this effect is increased when gun related accidents (an admittedly small number) are added to the huge suicide number, since they are almost always situations where the gun owner and their family are the victims. The home defense benefit of guns is laughably tiny, statistically and plays essentially no relative role in increasing the life expectancy of gun owners, like myself. Basically, if you are at high risk of victimhood, whereby you "need" a gun for that purpose, you're likely going to benefit more from moving to a different location or modifying who you interact with and/or how you interact with them.
To me gun ownership makes sense if you're at very low risk of suicide and you get something positive out of the gun. Say hunting, target shooting, collecting, skeet etc.