What is the average age to grow a mustache?

The average age to start growing a mustache typically falls between 15 and 18 years, as this coincides with the onset of puberty when facial hair begins to develop. However, the ability to grow a noticeable mustache can vary widely among individuals due to genetics and hormonal factors. Some may see significant growth earlier, while others might not have a full mustache until their early twenties. Ultimately, there's no definitive age, as it varies from person to person.