For example, a college may give a condition of admission that the student “maintain your academic performance in your high school course work”. The result is that many students and parents get worried about rescission when their GPA drops, whether it is a small drop (like 3.8 → 3.6) or a larger drop (like 3.8 → 2.8).
But that means that lots of students get worried over nothing, while other students do not know until late summer whether their college plans are halted due to their GPA drop.