When someone stops driving, medical appointments usually get covered by family or a service. Social visits do not. They are the first thing to disappear and the last thing anyone thinks to arrange.
The consequence shows up in health records eventually. Loneliness in older adults is associated with worse outcomes across almost every condition, and it is far cheaper to prevent than to treat.
Jomia books social trips with the same care as clinical ones, including the visits nobody else covers: a spouse in memory care, a friend in hospital, a grandchild's graduation.