<P> The United States, Canada, and Mexico all grant unconditional birthright citizenship and allow dual citizenship . The United States taxes its citizens and green card holders worldwide, even if they have never lived in the country . In Mexico, only naturalized citizens can lose their Mexican citizenship again (e.g., by naturalizing in another country). </P> <P> The Fourteenth Amendment to the United States Constitution guarantees U.S. citizenship to those born in the United States, provided the person is "subject to the jurisdiction" of the United States . Congress has further extended birthright citizenship to all inhabited U.S. territories except American Samoa . (A person born in American Samoa becomes a non-citizen US national). The parent (s) and child are still subject to de jure and de facto deportation, respectively . However, once they reach 21 years of age, American - born children, as birthright citizens, are able to sponsor their foreign families' U.S. citizenship and residency . </P> <P> There are no statistics about which countries have citizens who participate in birth tourism in the United States . The Center for Health Care Statistics estimates that there were 7,462 births to foreign residents in the United States in 2008, the most recent year for which statistics are available . That is a small fraction of the roughly 4.3 million total births that year . The Center for Immigration Studies, a conservative think tank, estimated in 2012 that there were approximately 40,000 annual births to parents in the United States as birth tourists . The Center also estimated in 2012 that total births to temporary immigrants in the United States (e.g., tourists, students, guest workers) could be as high as 200,000 . </P> <P> Russian birth tourism to Florida to' maternity hotels' in the 2010s is documented . Birth tourism packages complete with lodging and medical care delivered in Russian begin at $20,000, and go as high as $84,700 for an apartment in Miami's Trump Tower II complete with a "gold - tiled bathtub and chauffeured Cadillac Escalade ." </P>

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