I live in such a place. And have lived in others too. Most are away from cities. Rural south, midwest, even a small western costal city. If I feel compelled to lock my doors when I leave my home, I dont feel welcome in the place I live. Worse, are people who live where they would literally lock themselves inside their own home. I wouldnt wish that level of fear and insecurity on anyone. I fear for our future that this seems to have become not just common, but default behavior.