Is a right to sterilization validly denied to a person who is incompetent?

Appellants treat the constitutional right of privacy as synonymous with "a constitutional right to sterilization." The courts of this state have recognized that a competent adult may be sterilized voluntarily (see Jessin v. County of Shasta (1969) 274 Cal.App.2d 737, 745-749, 79 Cal.Rptr. 359), but appellants have cited no California authority--and we know of none--supporting their contention that they may in effect compel respondent to be sterilized. The question presented may therefore be stated as whether the right to sterilization, which is held by a competent person, may validly be denied to one who is incompetent.