You arm yourself, and you defend yourself, not "get used to it". That response is a typical brainwashed government stooge who doesn't want people defending themselves, just wants to leave them helpless, if that's what they said.
When there are people with guns at a crime, they respond in the present. When you have to call someone to come save you because you can't do it yourself, a lot can happen and you have to use bare hands or submit to the criminal so as to avoid being hurt. Look into open carry states and how many crimes have been stopped by people getting involved rather than calling the police and waiting.