No, unless the child is disabled and the parents have a conservator ship (guardianship) over their adult son OR the age-of-majority is higher than 18 in their jurisdiction. They can try though but I would recommend that the son a) get a lawyer and b) inform the bootcamp that he is not a minor and not subject to his parents' direction and supervision anymore. He should also mention "false imprisonment" and "lawsuit" as well. good luck.