Guns and autos are instruments of death. Guns are meant to kill living things. Autos are meant to take you where you want to go. SO?

Homo saps carry guns.
Autos carry homo saps

Both are potential instruments of death

You can live without owning a gun. Harder to live without an auto.

Many people have many of them.  Users and collectors. How now brown gun. How now now brown car. And so it goes.