The age at which a debutante "comes out" varies, but it is generally between 16 and 21 years old.
The tradition of debutante balls, or "coming-out parties," dates back centuries, and the age of the debutante has evolved over time. In the past, debutantes were often presented to society at a younger age, typically around 16 or 17.
However, in modern times, the practice is less common and the age range has expanded. Some debutante balls may still adhere to the traditional age range, while others may be more flexible.
The age at which a debutante "comes out" is ultimately determined by the specific traditions and customs of the society or family in question.