What is the purpose of the quinceañera? (1 point) Responses to celebrate a boy's coming of age when he turns 15 to celebrate a boy's coming of age when he turns 15 to celebrate a boy or girl's sweet 16 to celebrate a boy or girl's sweet 16 to celebrate a girl's coming of age when she turns 15 to celebrate a girl's coming of age when she turns 15 to celebrate a boy or girl's 18th birthday. to celebrate a boy or girl's 18th birthday.