If you read the original book "Tarzan of the Apes" by Edgar Rice Burroughs the question is answered. Tarzan had his father's very sharp knife that he kept honed to a razor's edge. He used this knife to "scrape" off his beard because he did not want to look like an ape. He had learned that he was a "man" fron picture books that were in the cabin his father built before he was killed by a great ape. He was an adolescent before he found the cabin and gained entry.
Isn't it true that if you never shave in your life, you would only have very short stubble rather than a full beard? It's when you shave that your beard comes on thicker every time.
Your question was answered as 'that's not true' - I backed that up by citing that head hair, which would follow similar, if not exactly the same processes, clearly doesn't do what you questioned.
Why post any further on it? Your question was answered and you became argumentative. Your argumentative nature and the fact you circumvent a script just so you can swear at someone I'd suggest shows your nature - not mine.
I seem to recollect it was another poster who said "that's not true!".
You could try to find out by looking at the thread in more detail. There have been times in the past that I've been wrong, but in this case I don't think I am.