In college, there is a definite difference in expectation, and this is a major challenge.
In high school, students are cradled by the teachers and administration. If a person is to fail an assignment, the students have as many chances possible to pass. In addition, if a student fails an exam, this will not mean that the student fails the course.
Therefore, this causes major problems going to college. In college, most courses require that the student passes the exam with a certain grade determined by the school. In addition, for most courses in college, it is expected that the student gets a 50 or 60 percent in the course, depending on the course.
Furthermore, in college, students are expected to learn quicker. What is meant by this is, that in high school, students are taught at a slower rate. Therefore, it is definite that in high school, having less expectation reflects in college, by causing more of a challenge for the student to adjust.