Germany for example prohibits home schooling. don't breed detached extremists. however Germany thinks binning kids into handcrafts, simple office jobs and academia at age nine (!) is a brilliant idea o-O. but then on the upside again, you will go to school for at least 13 years if you get _any_ kind of qualified professional education.
China has one (1) math text book for 1.4bn people.
France has competitive cognitive Tests (Concours) to enter highest education.
maybe a problem is that everybody went to school so everyone thinks they are experts. it's hard to evolve schooling. like steering a super tanker. slooow. too slow for four year election cycles.