When Stella and Byron bought a home in Chicago years ago, Stella’s mother moved into an upstairs apartment. She was independent, working and socializing outside the home. Her grandchildren visited regularly. But Alzheimer’s disease and a series of strokes gradually stole much of her autonomy, until she was homebound and completely dependent on the family. Stella, an emergency room nurse, spent her after-work hours caring for her mother, and struggled to find competent and committed workers to keep her safe and tend to her needs during the day.