In the 1990s a major experiment was done to improve the lives of some of the poorest city people. They were given subsidies to move out of the slums of concentrated poverty into neighborhoods that were a little better off and better mixed economically. The policy makers hoped that the people who moved would get more education and better jobs.
What they did get, though, was much happier. Moving their families to safer, less stressful neighborhoods increased their happiness the equivalent of a $13,000 raise.
A parallel experiment that moved poor non-white people into equally poor white neighborhoods had no such positive effect.
This report does not tell what happened to the children of these relocated families. My guess is that they grew up safer, with better chances, and happier.