The intention is to stop criminals from leaving a crime. Citizens arrests in america are a thing, and some glorify the idea.
In america, guns are tools like forks and knives. Keep em on your hip, forget they are there type of thing. Other countries would grab a bat or stick, americans grab guns. Its intimidation either way but when you mishandle a stick nothing happens.
Mishandling a firearm happens to every firearm owner at least once, and mishandling a firearm can result in unintended death and destruction.