There is a certain age where they're legally required to be in school, the parents have no choice other than to have their child taken so no you can't blame the parents for putting them in school too early. You can teach them but like I said for every 4 hours you have with your kid the school has eight, and kids hate daily interrogations more than they love hearing their teachers are wrong. Regardless of if you're able to counter the schools bullshit it's still counter productive to your goals, and it means your kid is away from parental supervision.