Mississippi Juvenile Detention Center Sued for Abusing Youth

Back in February, I mentioned the ACLU's description of a juvenile detention center in Wyoming as "a lawsuit waiting to happen," and a class-action lawsuit against the detention center in New Orleans, where youth are often locked in their cells for 20+ hours a day, and rats and mold are present.
Now, Harrison County, Mississippi, has been sued because of conditions in its privately-run juvenile detention center. Allegations include staff abusing youth emotionally and physically, and squalid, overcrowded living conditions, including insect infestations, "widespread" scabies and staph infections, 23-hour-a-day lockdowns, and no access to mental health care.
We'll see what happens -- a representative of the firm that runs the Harrison County detention center denied there were major issues -- but the overall trend is not encouraging. Why do we think we can -- or should -- treat children this way?