If your children attend private school, you are still required to pay taxes which help to support public schools. Most areas have schools for children who are younger than 6. These schools, somet1mes called kindergartens, nursery schools, or pre-schools, provide educational training for children prior to the first grade. Most pre-schools admit children between the ages of 2 and 5. Education in America is accessible to everyone, regardless of age, race, ethnic background, or social status.
Most public schools have a zoning area which accepts only children living in the area.
Since education is accessible to all regardless of one's citizen status, legalization of documents will not be required. Education after high school is not free and may be very expensive. A private college or university is much more expensive than a city or state college or university. The best source of information on a college's entrance requirements is the Admissions Office of that college. Colleges and universities will require transcripts from previous schools, your Social Security number, medical records, and other proofs of identity.