Children do not learn completely "unsupervised" and recieve frequent feedback from the agents. I would argue that a significant amounts of childhood development, (especially around "labels"), is due to our hardwired attachment to human faces.

I have always felt that the signifance of the "social software of human culture" in our general intelligence and learning capacity was underestimated by the AGI community.

So personally, I see more potential in communities of learning agents than any developments in the underpinnings.