At 12 years old, most boys are just beginning to experience changes in their bodies, including the onset of puberty, which can lead to some facial hair growth. However, the amount of facial hair varies significantly among individuals, and many boys may have little to no facial hair at this age. It's completely normal for a 12-year-old to have sparse or fine facial hair, and any significant growth typically occurs later in teenage years. It's important to remember that everyone develops at their own pace.
Normally, an 11 year old boy is not supposed to have facial hair quite yet. If you do, I would just use mens' facial hair products.
may
no
It all depends on your genetics. Guys get facial hair and start shaving at different ages. I am 18 and have had to shave daily for over a year now and it is just annoying. I personally think that you shouldn't worry and be happy you don't have very much facial hair.
because they do
yes
No, You are probably going to die.
In the vast majority of cases, there is no need for a ten year old to shave. In a very few instances of early puberty, there may be enough facial hair to warrant shaving.
If you are concerned that you are losing facial hair you should make an appointment to see your doctor. There are a few conditions that could cause that as a side effect and you should get it evaluated.
As far as i know, hair growth speed is different for every person. some 13 years old can't even grow facial hair while others have long beards.
grow some facial hair
shave it off