After the last Kill, when Unity began, any Gen that was in the company of a Sime was declared that Sime's ward, to be feed, clothed and cared for until such time the Gen could pass a citizen test and be declared a free person.
From To Kiss or To Kill, Ch 3. ' "You haven't been paying attention, Baird. This Gen is not yours to take anywhere. According to the new laws, any Gen still alive and in the possession of a Sime at midnight tonight becomes the ward of that Sime. This Gen becomes my ward, not yours. I'll decide what to do with it." '