My experience with friends who have gone to places like this is that the kids by and large were under extreme emotional neglect from a very early age, and visiting a “troubled teen” facility is that it catalyses and forever imprints a childhood completely filled with trauma. It destroys forever the possibility of a relationship with the parents. Kids are often not told where they were going or being rushed away in the middle of the night, with drill sergeants and harsh punishments and rural facilities designed to present escape. It’s psychological torture to “break” a child as one would a farm animal.
Parents are sacrosanct in this country and there is no actual community to give much in terms of help. Peoples suburban homes are their castle and nobody knows how much neglect or abuse is going on behind closed doors until the kid shows up at school with a “behavior disorder”. Simply put: people who are completely incompetent to care for another human being much less an immature one’s emotional or physical or developmental needs get full legal protection. I think this is underappreciated in society since everyone who is a parent experienced many difficulties and they imagine all the ways things could go wrong. They are usually being charitable to the other parents though - the bar at which a child develops a secure emotional attachment is not that high.