A lot of people still live in various hellholes on earth and won't move and I wonder why not? What keeps any person living in Detroit? It cannot be the job so good that it cannot be beat elsewhere. I lived in Detroit and I won't go back. Even Karachi is nicer and probably safer than Detroit or Chicago. Let's face it. When you can be a member of the high school band that played for the President of the United States one day and be shot to death in your own neighborhood the next day, it's passed time to find a new place to live in another environment.
On the gripping hand, there are some people that nobody wants to have around. Like these little sneaks that won't even look you in the eye.