Well, see my other post in this thread. This is an example of exactly what I was talking about. If your only response to stuff like this is to complain about how it's not "fair", you take one step towards preventing it from even existing in the first place. Who wants to try anything new if the only thing they're going to hear is "But it's not being evenly distributed to everybody!"?
This is step one. Before we can "come up with solutions that are inclusive" we need to just plain come up with solutions! Don't kill that with complaining long before it's relevant about how "fair" it is.
Is it really so wrong that the rich are willing to be guinea pigs anyhow? It is, after all, ultimately disingenuous to complain that the school systems aren't seeing this improvement because whenever the school systems suggest trying this sort of improvement the complaint about using kids as guinea pigs and ohmigosh their futures will be wrecked immediately come up. You can't have it every which way. This is a significant chunk of the mechanism that has rendered national-scale schooling impossible to innovate with anyhow.