Unschooling works for a fraction of kids, and at some stages of their life.

How big is that fraction? In my experience being around a bunch of home schoolers (and adjacent, and school system), some of whom were more in or out of unschooling, I think it's small enough that it should be a rarely considered option.

There are some kids where it will work _really_ well. I've interacted with a couple. There are a lot of kids where it really doesn't work, especially in a distraction rich environment.