A visa for students is issued only to those who meet the required regulations for this visa.
The F-1 Visa (Academic Student) allows you to enter the United States as a full-time student at an accredited college, university, high school, elementary school, or other academic institution or in a language training program. Your school must be authorized by the U.S. government to accept international students.
The M-1 visa (Vocational Student) category includes students in vocational or other nonacademic programs, other than language training.