What restrictions are there on naturalization?

Naturalization is when an immigrant becomes a citizen by being born in the United States. An immigrant can also be naturalized by applying for naturalization. When I first learned about Naturalization, I thought that for sure there would be a lot of restrictions or special cases an immigrant would need to pass in order to become naturalized. For an adult who is applying for naturalization, they must have been a resident for at least five years, demonstrate good moral character, and have an obligation to swear an oath of allegiance to the United States. Once naturalized, an immigrant gets the same rights and status as a natural-born citizen of the United States. A special case of naturalization is when an adopted child who is an immigrant becomes naturalized when one of the adopting parents are a citizen at the time of adoption. Children can become naturalized when their parents become naturalized. Naturalization is one of the only ways that an immigrant can obtain full citizenship and the full rights that come with, which makes naturalization the goal for many immigrants.