I didn't use home health, except that I would hire aids that I was personally friends with, to watch my husband while I got groceries or shopped. I had enough training, that I took care of him myself.
However, there are elderly people who need more intensive care that goes beyond activities of daily living. Most, or all, of those needing home care, require blood pressure readings, shots, therapy, and other treatment a family member is not qualified to do. That will stop, and these people will be in a bind that could result in deterioration or even death.