why some girls have hair on their face?

It's in her genes,

my youngest stepdaughter has hair all down her forehead and her eye lashes are soooo long, it would make you want to go cut them off and glue them to your own but, that's just how it is for some,

some men start losing their hair before they are 20 yrs-old and then there are others who will never turn grey, it has everything to do with who their parents are and what's in their genes, that's all

I think...........

Mammals need body hair to keep warm, and lose it only for special evolutionary reasons. Whales and walruses shed their hair to improve speed in their new medium, the sea. Elephants and rhinoceroses have specially thick skins and are too bulky to lose much heat on cold nights. But why did humans, the only hairless primates, lose their body hair?

One theory holds that the hominid line went through a semi-aquatic phase . witness the slight webbing on our hands. A better suggestion is that loss of body hair helped our distant ancestors keep cool when they first ventured beyond the forest's shade and across the hot African savannah. But loss of hair is not an unmixed blessing in regulating body temperature because the naked skin absorbs more energy in the heat of the day and loses more in the cold of the night.

Humans lost their body hair, they say, to free themselves of external parasites that infest fur . blood-sucking lice, fleas and ticks and the diseases they spread.

Once hairlessness had evolved through natural selection, it then became subject to sexual selection, the development of features in one sex that appeal to the other. Among the newly furless humans, bare skin would have served, like the peacock's tail, as a signal of fitness. The pains women take to keep their bodies free of hair . joined now by some men . may be no mere fashion statement but the latest echo of an ancient instinct. Though both sexes may prefer less hair in the other, the pressure of sexual selection in this case may be greater on women, whether because men have had greater powers of choice or an more intense interest in physical attributes.

All girls have hair on the face, some you just can't see as well. Everyone has a mustache, maybe not till they get older.. but for maybe blondes, it's really not noticeable but for a brunette it may stand out a lot more. It's just a part of life.

Heredity. The same reason some men have less hair on their face.

hair is on every part of your body for both boys and girls-hair does not grow on four place on anyone; the palm of your hands and feet. did you notice that hair grows on womens breast, you just can't see it. hair bumps are all over. women can't help it so deal!

genetics

my mother isnt hairy

my father is hairy as hell.

sucks for me. But i wax.

but i do have really thick sexy head hair, which is good

All mamals have hair. It's just a matter of how much you can see.

They’re Italian.

Some girls have higher testosterone levels than other girls.

i know its gross i just want to tell them to shave it off but that would be totally rude but its genes or like someone said on blonds it doesnt show up on burnettes, black, it shows up bad so there you go i hope i was some help. ;)