They may be too young. They may not be able to give the things a child needs to be happy and healthy. Sometimes the birth-parents have died. People adopt children because they love children and want to bring a child into their family. Foster parents, the birth-parents family, or anyone else who wants to include a child in their family can adopt children.
Adoptions can involve all types of children and families.
Children can be adopted at any age. Some are babies. Others are teenagers. Even adults can be adopted. Children can be adopted into a family of a different race or religion.