One can always find a singular example of something really horrible, then try to use the emotional energy of that to drive their point home. In most cases, and in this case, there are other issues which you can't disentangle so easily.

My reply does indeed answer the question, as to the part of the experience of such a child I could understand. In particular, I was severely abused by a classmate, and felt unable to ask for help. I felt a great many things about my experience, and I know this from my personal experience: The POV of the child is truly paramount. It can turn a voluntary contractual experience of privilege into a horrible coercive one, or something that someone might call "indentured servitude" into something positive. It may well be that what appear to be the exact same circumstances are one thing to one child, and the opposite to another, or that it's remembered as a mix of both.

My lived experience tell me this, and in light of that experience, your comments strike me less likely to be a genuine concern for and understanding of those experiences and more as a rhetorical tactic using people's protective feelings towards children.