While I tend to be skeptical of compulsory schooling, and perhaps even hold a little bit of the disdained perspective you clearly have towards the notion, I am utterly unclear as to what your reply is trying to say beyond the few snippets of bitter resentment.

Are there no pros to compulsory schooling? Day prison… really? What exactly are we going to expect young people to be doing in this day and age if they aren't in school?

Where do I think all this came from? I have no idea. But neither can I say that I have any idea where you think this came from.