https://travel.state.gov/content/travel/en/us-visas/study/student-visa/foreign-students-in-public-schools.html#:~:text=Can%20organizations%20or%20individuals%20sponsor,tuition%20costs%20for%20the%20student.
여기에 보면 공립학교에 입학하려고 미국에오는 학생은 F-1 비자가 거절된다고 있네요.