You dont need to be a billionaire to be able to afford a good school for your children if the public ones dont meet your criteria.

Im not sure about this particular school, but i am greatly disappointed at baseline california core requirements for math and science in middle school and the parents choice is to either have your child be bored in school while complementing their education with RSM or Singapore Math after hours Or to choose a private school that will make your child more competitive with kids being educated by other countries systems.