21. Medical or surgical or other force to minors or others in custody
Consent to the use of force against a person for purposes of medical or surgical treatment, or otherwise for his or her benefit, may be given against his or her will by his or her parent or guardian, or a person acting as his or her guardian, if he or she is under 16 years of age, or by the person lawfully having the custody of him or her if he or she is mentally disabled or is an inmate in any correctional facility or reformatory, and such consent when given on his or her behalf cannot be revoked by him or her.