I hate shaving. I started when I was in high school. But over the years my testosterone has decreased so I now shave only twice a week. If I wait any longer it's more difficult to cut.
In fact when I see the doctor I get a testosterone shot.
My facial hair like the hair on my head was dark but now gray.
I have a half-brother. The hair on his head is white, on his face is red and on his chest is black. Never saw his pubes. In fact I've not seen him for decades.