Calls upon States, with the support, where appropriate, of international organizations, civil society and non-governmental organizations, to develop policies and programmes, giving priority to formal, informal and non-formal education programmes, including age-appropriate sex education with appropriate direction and guidance from parents and legal guardians, that support girls and adolescent girls and enable them to acquire relevant and adequate knowledge and information in a manner consistent with their evolving capacities, develop self-esteem and take responsibility for their own lives, and to place special focus on programmes to educate women and men, especially parents, about the importance of girls' physical and mental health and well-being and the need to develop and maintain respectful relationships between girls and boys;