What do we do.. I'm 21 and my younger siblings are 13 & 15 and they what to move in with my mother... But they currently live with my father whom will not relinquish custody... What should they do? I left right after I turned 18 because my father is not a good man... And my mother was mia at the time but has come back with flying colors and brought a kind of love and live back into there lives they haven't had in a long time...