It was hard enough for me to take the GRE when I went to a uni of 50,000 in a city of around 1 million. The testing center on campus naturally was booked out long in advance. Nearest center was 35 mins away in the outerbelt suburbs in another county at that point I believe, in some huge office park on a stroad without sidewalks nowhere near any bus lines. If I didn't have a car to borrow, there would have been zero way for me as a college student to get to this student testing center short of reserving three hours per leg to bike on de facto highways, which is baffling, but that was the reality.