Adopted Child wants to come home

Being a supervising social worker myself i can tell you that no judge is going to return a child to a birth parent after a legal adoption. I also have personal experiance My cousin was 15 when my aunt put her daughter up for adoption and slthough my cousin was a minor at the time my cousin daughter is now 17. her mother has been fighting for her since she was 6yrs old and when my cousin daughter turned 15 she found out and wanted to go live with her mom and the adoptive parents agreed and the judge still would not agree to give custody back to the birth mom. what he said was that when the child turned 18 she could choose where she wanted to live. and that if the adoptive parents agreed to allow her to live with my cousin before that time that was their choice but there would be no legal standing for it and that my cousin would not be able to bring the aparents to court for child support or anything. also that the adoptive parents would still be legally responsible for making any decisions pertaiing to the child