When exactly does a girl become a woman?
Most Helpful Girl
it's not like you wake up one day and you're a woman. different people grow and mature at different rates. but it's also subjective, it depends on how you define "woman".
legally you're a woman once you turn 18.
mentally, you don't finish maturing until around the age of 25.
i'm 20 and I still think of myself as a girl; I've not really come to grips with the whole "adult" thing yet.2