Students who have recently graduated high school are able to attend college as a freshman, but it’s rare that someone who has been out of high school for five or more years will enter college as a freshman. There are a variety of reasons why this could be the case that have nothing to do with any university’s policies, of course, but the idea that a person’s knowledge, skill-level and intelligence could expire does exist in the world of higher education.
Standardized test scores also expire. Generally this isn’t a big deal for tests like the ACT or SAT,
Having to take a standardized test like the GRE (or GMAT or MCAT) later on in life can be a little bit like those nightmares lots of people have where they dream that they’re late to take their AP English Language exam only to find out that they’re not wearing shoes and the test is in a completely different building. Only this time, they’re not even dreaming. Something about sitting in a classroom with a proctor at the front of the room and filling out bubbles can make even the highest-achieving professional adult feel like an insecure teenager again.
Practical doctorate degrees like a Doctorate of Education may not be pursued by a student until he or she is well into his or her career, and possibly several years after he or she has earned a master’s degree. Despite already taking the GRE (and presumably earning a high enough score to gain entrance to a master’s program) this person may need to spend the time and money to study for take the GRE again, depending on the admissions requirements of the program in question.
Granted, earning a first (or second or third) graduate degree is completely a matter of choice and if the thought of taking the GRE multiple times is that unappealing to the person, he or she can of course opt out. But having to reprove one’s intelligence (not to mention pay even more money to the Educational Testing Service, an organization the person has likely been giving money to since taking his or her PSAT) can be frustrating, even insulting.