In what situations are guns not needed though? I wouldn't even dream of doing anything other than manning a booze bus in a place where people are allowed to leg

In what situations are guns not needed though? I wouldn't even dream of doing anything other than manning a booze bus in a place where people are allowed to legally carry guns if I didn't have my own one. It doesn't seem like the choice for most American cities is between armed cops and unarmed cops. It's between armed cops and no cops. Why would anyone sign up and expose themselves to that level of risk?