A traditional quinceañera is usually held when a girl turns 15.
The celebration marks a transition from childhood toward young womanhood in many Latin American communities. It commonly combines a religious service, a formal reception, music, dancing, and symbolic rituals involving family members and attendants.
The age is not a universal legal threshold, and customs vary by country, family, and denomination. Some families adapt the celebration for cultural rather than religious reasons, while others hold it at a nearby date because of school, travel, or venue schedules.
The tradition is especially associated with Mexico and other Latin American countries, as well as Latino communities in the United States. It should not be confused with a civil birthday requirement: turning 15 does not generally confer adult legal status.