Can China children born in Chile get a green card?

Your cousin has a green card, which has nothing to do with you and your children.

You are not immediate family members, so it is not good for you that he has a green card.

If your child used to want to go to primary school, report to primary school first. The local primary school has issued an admission notice, and he can apply for a student visa for F 1 with the admission notice.

Tuition is mainly for international students, but your child's visa may not pass, first of all, his age, and secondly, your cousin has a green card, and the embassy will say that you are inclined to immigrate. But as long as VO doesn't hold on to this point, maybe your child still has hope of getting a visa.