Answer: H 1B visa is a work visa and green card application are two different things. Generally, employees with H 1B visa will apply for a green card for you one year before the six-year expiration of H 1B visa, but it is not necessary.
In addition, if the child is born in the United States in the future, parents can apply for American citizenship within a few years after the child obtains American citizenship.
Answer: The child is an American citizen after birth, which has nothing to do with the parents' application for a green card, unless you are willing to wait for the child to reach 2 1 to help you apply for relative immigration.
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Yes, the adult standard in the United States is 2 1 year, just like the drinking regulations. Yes, I hope it is 18.