When they moved to the CCRC, the parents in law wanted single story living and freedom from house and yard maintenance. They were very active and had a lot of friends their age, some living at the CCRC. They would have missed out on a lot if they moved away at that time. Driving for visits with the children and grandchildren was not a problem. As the years passed, the friends died, driving became a problem, and they needed help that they weren't getting from the CCRC.
I can't make some of the grandchildren understand that there was good reasoning behind going with a CCRC with a type A contract. It completely alleviated their fear of running out of money due to nursing home costs. At 90 and widowed, and in hospice MIL’s last year was in the nursing home wing of the CCRC. In retrospect, her savings could have funded a year or two in a nursing home closer to her children but the CCRC buy-in was non-refundable and they all found giving it up to be inconceivable.
I’m more of a fan of flexibility. Age in place until you can’t and then find a situation that better suits you.