I did a little research for him:
HOW WIDESPREAD A PROBLEM?
One of the most comprehensive surveys of abuse in foster care was conducted in conjunction with a Baltimore lawsuit. Trudy Festinger, head of the Department of Research at the New York University School of Social Work, determined that over 28 per cent of the children in state care had been abused while in the system.
Reviewed cases depicted “a pattern of physical, sexual and emotional abuses” inflicted upon children in the custody of the Baltimore Department.
Cases reviewed as the trial progressed revealed children who had suffered continuous sexual and physical abuse or neglect in foster homes known to be inadequate by the Department. Cases included that of sexual abuse of young girls by their foster fathers, and that of a young girl who contracted gonorrhea of the throat as a result of sexual abuse in an unlicenced foster home.[1]
In Louisiana, a study conducted in conjunction with a civil suit found that 21 percent of abuse or neglect cases involved foster homes.[2]
http://www.liftingtheveil.org/foster04.htm
Sounds horrible.
Infants are yes usually adopted, though.
In this case I think the grandparents are too old, or think they can’t raise the baby.
It didn’t mention if they have siblings.