If China immigrates to the United States, is it free for his children to attend public primary and secondary schools there? Do I have to pay if I want to go to a private high school?

Immigrants, non-immigrants and citizens are irrelevant.

As long as you live in the local school district, attending public schools is free. The financial support of public schools comes from the local housing tax, so as long as you live in the local area, you have the right to enjoy free education, which has nothing to do with your status.

Of course, private schools have to be paid, and ordinary people don't need to go to private schools.

Intermediary is intermediary, still so lame.