Preventing teenager from turning off "Find My" within the family
For safety and many practical reasons, we want everyone in the family to be "findable" with the Find My app within the family. However, my teenager stops sharing his location at will. So we wanted to turn on sharing location -- for folks within the family -- and prevent him from turning it off.
Looking through prior questions in Apple Support, it appears that many others have asked this question which is unanswered in later posts.
After discussing this on a call with tech support I thought posting the answer would be helpful. It turns out that modern iOS limits a parent in this regard. That is, once the teenager turns a certain age -- but is still a minor -- the iOS does not allow a parent to turn on location sharing and prevent the teenager from turning it off. So if you think that this functionality is useful, you should create some feedback to Apple.