20. Urges all States to enact and enforce legislation to protect girls from all forms of violence, discrimination, exploitation and harmful practices in all settings, including female infanticide and prenatal sex selection, female genital mutilation, rape, domestic violence, incest, sexual abuse, sexual exploitation, child prostitution and child pornography, trafficking and forced migration, forced labour and child, early and forced marriage, and to develop age -appropriate, safe, confidential and disability-accessible programmes and medical, social and psychological support services to assist girls who are subjected to violence and discrimination;