It definitely wasn't a rite of passage for me.
You've just made me realise, I went into my last relationship feeling like a child, I came out of it feeling like an adult. (It was nothing to do with the relationship, but it's one way of measuring time and ordering my memories.)
Over the last couple of years I've learned a lot about myself and my place in society, how my actions affect others and how the actions of others affect me. I've gained awareness in how to be my own person, to say no, to stop trying to please others all the time.
I'm still a student and my dad still gives me rent money, but I can't honestly call myself a girl any more.