They still do and so what?? People live where they choose and there is nothing wrong with that. Some like to live in diverse communities, and some prefer to live around their own kind. So be it. It’s a free country.
Poor kids and wealthy kids still have separate schools. Private schools sprang up the day that forced busing began. Kids that have been segregated by their private school handlers cannot be expected to fully understand the working class. Kids that have been segregated by the federal, state and local governments cannot be expected to fully understand the workings of other classes in society. With the old local school system, wealthy and poor were schooled together equally. Today, only the wealthy have access to a proper education.