How is the care of children different in Jonas' world in "The Giver" than in your world?

In The Giver, the upbringing of children is much different from our own.  Babies are places in a type of nursery where they are kept until they are placed in a specific family.  There is no genetic bond between parents and children.  The children who do not meet the expectations of the community cannot be placed with a family, and are therefore “released”, or killed.  After placement, the children are then taught strict rules for behavior.  No rash emotions are allowed.  The final major difference is that the children are not at liberty to choose their own fates: at a certain age, their careers are chosen for them.