I was never in public school (unless you count Boalt). We sent our daughter to private school, as our parents had sent us, and we would certainly not have thought that the federal judiciary could play a productive role in her education. Last I checked, school boards are elected, depend on parental assistance and parental willingness to approve property tax rates, and are usually fairly responsive to parental concerns. So this doesn’t seem like an area where normal democratic governance, free of judicial intervention, would fail to function appropriately.