Thanks. That explains why you are unaware of the crime problem in the US and other places. I would love to visit Nova Scotia someday but I have probably put that off too long.
What you describe as certain areas with crime and safety everywhere else is the way it used to be in most of the US. Things have changed dramatically here in the last few years. I live in a large city, but definitely not nearly the size of Chicago, San Francisco or NYC. It used to be low crime and it still is compared to those cities, but we have lost police and seen crime rise in the last few years. Small towns and rural areas are the best places now, IMO.