How fascinating that books like this exist! I don't have children yet, but I probably will some day, and it's super important to me that my children get the best education possible so that they have a lot of options at their disposal when they reach adulthood. So a book like this is definitely the kind of thing I'd love to have, and I'd probably enjoy teaching my kid some of the material myself. This one in particular seems quite US-centric, but nonetheless I think it would still provide a useful framework for any English-speaking family.