I would like to install life hammers on the rear doors of my car. These life hammers are supposedly easy to use by children.
I asked the manufacturer for a minimum age for using this life hammer. They told me that while using it in an emergency wouldn't be the problem, using it when there is not an emergency would be! Therefore they recommend I install the life hammer only when the child can tell when it should be used.
How do I know whether my child can do so?