My experience of public school and other institutions was largely the reason I homeschooled my own kids, and never left them in the care of others. Rather than breaking out the abuse by institution, I reckon looking at all of the institutions that are designed to separate children physically from their parents provides a holistic picture.

What that informed me of, as a parent, was that all institutions that were so designed potentiated abuse using those institutions as a vector. What they all had in common, from the Boy Scouts to Juvenile Detention, was that parents were prevented from protecting their kids, and abusers that gained access to those institutions were then able to victimize children.

Separating children from parents is the enabling feature of all these institutions that create abuse.

The one act that protects children from all of them is to maintain physical presence at all times with your kids.