To be able to survive during winter hunting in the forest.
yes a boy will grow hair
At puberty.
Puberty
puberty.....
The pubic hair grow during puberty. Hair in under arms is also common. Also body hair become a bit thicker.
Reach puberty.
puberty
When you are in puberty
you have to hit puberty
yes it does when you hit puberty.
About 1-2 years after you start puberty, you start to grow hair under your arms and around your genitals.
You get pit hair around almost the middle of your puberty