Being born in France to foreign parents does not always confer French nationality at birth, unless the double jus soli principle applies. Instead, the French Civil Code offers three distinct pathways based on the child's age and residency history. Upon turning 18, a child born in France automatically becomes a citizen, provided they have resided in the country for at least five years since age 11. From age 16, teenagers may voluntarily apply for citizenship under the same residency requirements. As early as age 13, parents can initiate the request with the child's consent, provided the child has lived in France for five years since reaching age 8. A special rule applies to children with a parent born in Algeria before 1962, who are considered French by birth. These procedures, which involve filing documentation at the judicial court, account for thousands of new French citizens within the Algerian diaspora annually. Families are encouraged to preserve school records as essential proof of residency.