From the caregiver perspective it is thought that even people with dementia can age at home. However, the ability to do so requires both the expertise of properly trained home-care workers and adequate training for the family. Those two things in the case of dementia—even if there are no other co-morbidities—create the greatest amount of stress on caregivers and require the greatest amount of expertise among home-care workers, both of which are in short supply.
That is a particular challenge that is over and above helping somebody with kidney disease, for example.