(sorry for the derailment of this thread, but I find it interesting)
@luv2cheer92
My next Q would be then - What are the entry requirements for Universities/Colleges in the US?
Despite being free to attend, its quite difficult to get into university over here. We do exams called Standard Grades, Intermediates, Highers and Advanced Highers in the 4th, 5th and 6th years of high school (sophomore, junior, senior year equivalent in the US I think?) that all count towards getting into University - with the exams in 5th and 6th year being the most important.
The grades you get in 5 tests basically decide whether you get to go to uni. (Most people, myself included, absolutely hate this system and thankfully changes are beginning to happen. I don't like that my entire 6 years of high school is geared towards 5 exams. You don't actually learn maths or english, you learn how to pass the maths and english exam.)