A “last doll” is often presented as a quinceañera’s final childhood toy.
The doll symbolizes the celebrant leaving childhood behind as she enters a new stage of life. In some ceremonies, the quinceañera receives the doll from a parent or relative, and the presentation forms part of the formal program.
The tradition is sometimes connected with a later symbolic gift to a younger sibling, cousin, or other child. That detail is not universal, however, and many families omit the exchange or replace the doll with another meaningful object.
The last doll is one of several quinceañera symbols that can be confused with required religious practices. It is a cultural tradition rather than a sacrament. Modern celebrations may reinterpret it with a personalized doll, a keepsake, or no toy at all.