That's like handing the keys to the head thief - Half of your local high school probably can't meet those standards. If they can't provide basic literacy and numeracy in the public system, what right do they have to skool anyone on how they are doing it?
Meh.
Unschooled kids shouldn’t be forced to follow structured educational methods or curricula unless they can be shown to be falling behind a state mandated standard. Public school benchmarks are obviously not a goal any of us should be aiming for but there has to be a process of assessment to even be able to begin to make those kinds of judgments. IMO.