Change IS hard, no matter who you are, no matter how old you are.
Moving is on the list of the Top 10 most stressful life events. It’s understandable why our parent may be resistant to make a move, even when it makes the most sense for their safety and our peace of mind.
Read more here — Why is Change is So Hard? — to understand why change is difficult, and why resistance is often the default response on the part of an older parent to your suggest that they move. Perspective, persistence, and patience will win long-term.