One issue with the chain of logic: The value proposition of school is NOT the lectures. It's other things:
I agree in large part with what you said, but the two issues above need to be solved.
I agree that other things like personalized attention and signaling matter. But I think the lessons and lectures do matter a lot (enough to be talked about anyway). And I think that getting into that other stuff now would be going down a deep enough rabbit hole such that it'd be unproductive for this conversation.
This thread is for asking any questions that might seem obvious, tangential, silly or what-have-you. Don't be shy, everyone has holes in their knowledge, though the fewer and the smaller we can make them, the better.
Please be respectful of other people's admitting ignorance and don't mock them for it, as they're doing a noble thing.
To any future monthly posters of SQ threads, please remember to add the "stupid_questions" tag.