I live in America and got held back a grade, so I will graduate high school when I' m 19. As a 17-year-old, should I move out at 18 or wait until I
The twelfth grade is the twelfth school year after kindergarten. It is also the last year of compulsory secondary education, or "high school". Students often enter the grade as 16 and 17-year-olds and graduate as mostly 17 or 18-year-olds depending on their birthday.