친양자 제도는 친양자로 입양된 자에게는 안정된 입양환경을 제공하고 재혼가정에는 가족의 화합과 안정에도 도움이 되고자 도입되었다.
The child adoption system was introduced to provide a stable adoption environment for those who were adopted as full adoptees and help remarriage and family harmony and stability.