The celebration that includes the tradition of breaking piñatas among children is the Las Posadas festival in Mexico. Held in December, it commemorates Mary and Joseph's search for lodging in Bethlehem before Jesus' birth. One of its key events involves children taking turns to break decorated piñatas filled with sweets and treats, symbolizing the spirit of sharing and joy. This lively tradition fosters community involvement and allows families to celebrate together, emphasizing themes of unity, hope, and the festive spirit of the Christmas season.