My DM is in her 70s. Very fit, walks the dog 2miles a day, keeps her own 1/2 acre garden in check, goes to 2 exercise classes a week, is in a knitting group, active in the local church, does some childcare, catches up with friends. We are staying with the in laws this week. Same age, both healthy. FIL sits in front of the computer reading nonsense all day. MIL incessantly cleans her already clean house. In the 10 years I’ve known them I’ve never met or heard of a friend. They live too far away to do childcare (and we wouldn’t let them anyway). They have no hobbies, no activities they do, no groups they are in. They aren’t constrained by finance. It feels like a prison sentence by choice. I’ve made many suggestions over the years to no avail. I can’t understand anyone choosing to live like this.