Well as I understand it, one could study on Khan Academy and use that to get a GED, right?
Then you would only have to be in school when you took whatever test was necessary to get that degree.
Although you could conceivably try directly for university and skip High School completely. Or even skip university, learn to code in your basement and be done with it.
To me, Khan Academy represents a break from the traditional educational model. I would rather they focus on innovating than proving themselves as being just like every other school.
I think an alternative to the current model of getting yourself deep in debt to prove you're employable would do society alot of good