21. Recalls that the Convention on the Rights of the Child recognizes that a child, for the full and harmonious development of his or her personality and potential, should grow up in a family environment and that a child temporarily or permanently deprived of his or her family environment, or in whose own best interests cannot be allowed to remain in that environment, shall be entitled to special protection and assistance provided by the State, and that States parties shall, in accordance with their national laws and their obligations under the relevant international instruments in this field, ensure safe and appropriate quality alternative care for such a child;