Guns don’t level the playing field, all it does is change it. When you both have guns, the question is simply “who is the better shooter”. Like it or not, the criminal with experience robbing places and killing people, the criminal who knows his intention of murder and theft, he will likely be – the better shooter. In which case you won’t be protected anyway, not everyone is a super veteran cop biker and even then you can’t protect everyone in your family all the time. Safety is not caused by gun ownership, but through comprehensive policing to stop crimes, and social reforms to prevent people from wanting/needing to commit crimes. If you’re in a situation where some guy feels he can just walk up on you and gun battle you for your shit, then your society has some major problems that guns really can’t solve.