The TOEFL test (Test of English as a Foreign Language™) is a test that measures the ability of non-native English speakers to use and understand the English language as it’s read, written, heard and spoken in the university classroom.
Every year thousands of students take the TOEFL from around the world in order for a better education in North American schools. A lot of students from developing and underdeveloped world try to reach their goals of a quality education by getting scholarships to American and Canadian schools, colleges and universities. Thousands of students who can not afford the cost of studying especially in the United States do study in great American schools. A lot of colleges and universities in the United States provide financial aid, work study, loans, and scholarships to students who can not afford the cost of studying in America. One of the ways these schools can determine whether you are eligible at a school is through your TOEFL score. So there is no reason for you not to try.
*1 Image source: http://www.presstv.ir/detail/183191.html
*2 Image source: http://educators.mfa.org/galleries/slideshow/2974
*3 Image source: http://www.careers-india.com/2009/06/15/toefl-at-a-glance/