Different hormones produce different types of physical features for each individual and some produce more than others. As we age we tend to all get "things" we may not have had nor want in various places it may not seem "normal" but just a part of life. Don't judge or make fun of someone such as a girl with facial hair as if you can see it then they are also very aware of and likely self-conscience about it.
When you have facial hair it is better to have it waxed at a salon by a qualified estetician, it will not grow back as fast, also it will look very clean and nice. When you shave it will grow back like stubbleand give you a shadow, especially on your upper lip and sides.
There are some girls that do like chinstrap facial hair. It really depends on the girl, some like facial hair while others do not like any facial hair on a guy.
Their "Skin Cells" aren't developed to have facial har, only few girls have facial hair! 0.00005/10000 women have facial hair
The clean short kind. Keep facial to a minimum, but some is ok.
Every female is different. Some prefer a clean shaven look whilst others prefer facial hair.
Boys
There are several hair off facial buffers. Some of these include Facial Buffer by the brand Hair Off, the Hair Off Mitten by the brand Hair Off, and The Body Shop Facial Buffer.
The majority thinks its unattractive.
Because it is testosterone that makes facial hair grow in men and although women do have testosterone it is at a much lower level than in men that is why women do not have facial hair.
girls do have it but it is hardly noticable and it goes away after a wile so not many girls would have it.
In boys, there is some growth of facial hair. Also in girls and boys, there is quick increase in height.
Dihydrotestosterone, a derivative of testosterone which is responsible for growing facial hair.
Usually, girls notice a man's eyes first. Then, his hair and facial features.