I think the follow-on effects of delocalizing schools can be pernicious. In the extreme case you can look at districts in Vermont and Massachusetts where some towns provide vouchers to other education systems instead of having one themselves. Having non-local education systems almost completely disconnects costs from funding. It potentially creates a race to the bottom where districts lower property taxes and make their own education system worse knowing that everyone can use other systems. Of course if everyone does that we set the entire region/country backwards a great deal but prisoners dilemma systems are seldom successfully solved.