"Don Bruder" wrote in message

No matter how rich or poor, we all (Err... well, there are *SOME*
unfortunate exceptions, but that's exactly what they a exceptions)
come equipped with two feet and can start walking and/or hitchhiking to
get someplace else.

While you are technically correct, it just does not work that way in
society. Many of the poor, uneducated, were born in the city and just don't
know any better. Your simplistic answer will probably come true for tens of
thousands with no place to go, but many will return if for no other reason
than the fear of the unknown.

Of course there are others that know the danger and make the choice to live
in an area because of the perceived rewards of life in that region. They are
willing to take the risk. It has worked for a couple hundred years, but now
that changed.