Puberty
When they reach puberty - yes.
Really fast. the average woman shaves it off every two or three days.
Her breasts will grow larger and so will her hips, she will grow hair in her private place and under her arm pits. She may also want to start shaving her legs. Her breasts will grow larger and so will her hips, she will grow hair in her private place and under her arm pits. She may also want to start shaving her legs.
it certainly depepnds on how fast you grow and reach puberty, some children have underarm hair when they are eleven so it is certainly natural
maybe
Because we'remammals.
Yes!
Reach puberty.
it is possible. some people cut their arm hair but if u don't then it can be that long. yes
Boys - pubic hair , penis gets bigger, adems appel, under arm hair, hips get slimmer, faceial hair, and some more littel things Girls- pubic hair, under arm hair, Breasts grow, Nippels get bigger, hips widen, thighs widen, weight gain and once again littel small things. both get more mutcher and have "strops"
You cannot.