Unschooling! It's like an extension of parenting - zero 'educational' structure but loads of learning. John Taylor gatto has quite a few books 👍
Discussion
Not really answering your question I guess.. My point is there is no curriculum, nor should there be.
Really interesting point of view.
I can understand it shouldn't be one curriculum. But think it would be great to have knowledge to consider and create own one. A kind of github for education. Don't know.