Earlier quoted context omitted.
In college we had to use them. It was a financial burden on myself. $100/course essentially. Our school mandated that we take homeworks using Pearson's online system. This means if you found a used copy of the book it was essentially waste. You needed to have a one-time-use code (printed on the book) to do your homework. If you didn't, you'd essentially fail the class. Also, the system was buggy. The entire thing is…
Why is education like this in the US? Is it the teachers who willingly allow students to spend so much unnecessarily? Is it the admins? Do they get paid to do this stuff?
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.