what thing do we learn about how the old are cared for?What are some of Fiona's duties?

The elderly are tightly controled. They are subject to behaviour modification until the day they are "released."

Oh, there's lots to learn," Fiona replied. "There's administrative work, and the dietary rules, and punishment for disobedience – did you know they use a discipline wand on the Old, the same as for small children? And there's occupational therapy, and recreational activities, and medications....