This is another subject that is very difficult to gauge. Yes, there are parts of the USA that allow a retiree to take advantage of the equity in their home by downsizing and relocating to another state, thereby utilizing the additional cash from the sale of their home to generate additional income. A financial plan must be carefully considered when considering this decision. Most retirees like to spend time near their children and grandchildren, which might prevent them from taking advantage of such an opportunity. Others have opted to become ex-pats, and moved to countries like Mexico, Portugal, Greece, etc. where the lifestyle is not nearly as costly as it is in the USA. Many factors must be considered before a major decision in this area is made because, once made, you may not be in a position to reverse the decision. 
https://www.fa-mag.com/news/home-equity-an-untapped-source-of-retirement-income–vanguard-says-73813.html