Did you first notice it when you grew facial hair in the first place, or did it used to have hair there before and it just disappeared?
I have slightly thinner hair on the front of my chin (not really noticeable for anybody but me) because of scars, from just a scraped-up chin once. (A few years ago, I tried jumping on a friend's car after he dropped me off, and the dumbass floored it, so I rolled off the trunk and landed chin-first on the pavement. And yes, I was very drunk.) And I have a scar on one side under my chin, from one of the old big orange metal Tonka dump trucks when I was two years old. When I don't shave for a while, it's noticeable because no hair grows over the scar, but otherwise it doesn't really stand out.
So if you haven't had hair on that spot before, it's probably a scar of some sort -- even if it's not noticeable, you might have a scar there that you got when you were too young to remember, and the first few layers of skin might have grown over the scar tissue, but not enough to contain hair follicles.
But if you had hair there, and it suddenly stopped growing ... well then hell, I got nothin'.
By the way, are five-cent-pieces "dimes" in Australia? In America, five cents is a nickel, ten cents is a dime. Do they call them differently there, or am I just making myself look like an ass by inadvertantly suggesting that my country's money is superior to another country's money and that only ignorant people don't call their coins by the same names I do? Because I don't mean to be an ass. Really, not this time.
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