What is the traditional quinceañera ritual in which a parent replaces the celebrant’s flat shoes?

The traditional ritual is called the changing of the shoes.

During this ceremony, a parent—often the father—replaces the quinceañera’s flat shoes with high-heeled shoes. The action symbolizes a transition from childhood to young womanhood and is frequently performed during the reception after the celebrant has entered in a formal dress.

The custom is not universal. Some families do not include it, and others adapt it to their own preferences. The shoes may be selected to match the gown, but the symbolic change is more important than a particular color or style.

The ritual is one of several transition symbols associated with quinceañeras. Other traditions can include a tiara presentation, a formal waltz, a last doll, or the delivery of a bouquet. Because practices vary by region and generation, no single ceremony defines every quinceañera.