Because in US the social fabric is based on money. So it's not something you would necessarily consider odd. Kinda how Germans say "was always like this, why sh

Because in US the social fabric is based on money. So it's not something you would necessarily consider odd. Kinda how Germans say "was always like this, why should we change" but in different contexts. The other part is that Pearsons lobbies, the tests are already accepted as mandatory and then not every teacher is capable of coming up with his own test that allows you to then perform well in the Pearson test. You probably also risk a lot if you used your own test. It's basically industry developing its own industry.