These are fundamental in guaranteeing the right to health and development of adolescents. Article 17 states that the child has the right to “access information and material from a diversity of national and international sources, especially those aimed at the promotion of his or her social, spiritual and moral well-being and physical and mental health”. The right of adolescents to access appropriate information is crucial if States parties are to promote cost‑effective measures, including through laws, policies and programmes, with regard to numerous health‑related situations, including those covered in articles 24 and 33 such as family planning, prevention of accidents, protection from harmful traditional practices, including early marriages and female genital mutilation, and the abuse of alcohol, tobacco and other harmful substances.