Being 70, I am relating more and more to the importance of building with the idea that we can “age in place”. I have several links under the Universal Design section here https://www.thompsonplans.com/house-plans/universal-design-house-plans/accessible-universal-design-references/ that can provide a lot of useful information.
I recently came across an article that is a very nice condensed source of information for anyone wishing to explore this further. You an read it here>> https://freshome.com/renovation/aging-renovating-with-independence-in-mind/
It is never too early to incorporate these important design aspects into your home.