If tests are to qualify class completion, why do people care about good grades, and why aren't they graded to pass/fail. Tests have different reasons, good and

If tests are to qualify class completion, why do people care about good grades, and why aren't they graded to pass/fail. Tests have different reasons, good and bad. Feedback for teachers, students and parents. Discipline. To force/encourage students to study. To report to school boards. Tests are often a trap because people grab onto objective measures, no matter how flawed. It's like a measurable goal or performance criteria in business. People quickly forget that the KPI is not what the business is producing.