I want to know the answer to the following question:
For how long does facial hair continue to get darker, coarser, and thicker?
All the background I'm provided with is that "Facial hair in males normally appears in a specific order during puberty: The first facial hair to appear tends to grow at the corners of the upper lip, typically between 14 to 17 years of age.". Is that enough to answer the question?
Answer: no