Its because you shave in one specific area and that area tends to grow faster
because they do
Generally, he grows slowly. Technically it depends on your genes. Most people it take a year to grow full facial features and others a month or two.
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
Your hair grows about 6 inches per year. That means it grows about a 1/2 an inch per month
On your head, the average person grows about 12cm of hair in a year.
It grows about 15cm a year if you don't cut it.
Hair grows on average 6 inches a year, so 1 inch in 2 months.
It's difficult to predict exactly how long it will take for the mustache to grow back as hair growth varies from person to person. However, typically, facial hair like a mustache can grow back within a few days to a couple of weeks after being shaved.
yes
Hair grows faster in warmer climate...generally in the summer.