What is U.S. birthright citizenship? U.S. birthright citizenship means that all children born within U.S. soil automatically acquire U.S. citizenship. Regardless of whether the child\’s parents are U.S. citizens, a child born in the United States is a U.S. citizen. This is a principle enshrined in the U.S. Constitution and considered an important value by most Americans. U.S. birthright citizenship is also known as \”native citizenship\” or \”birthright citizenship.\” Why does the United States need birthright citizenship? The birthright citizenship system in the United States is based on the tradition of American history and culture. It reflects the