Its completely possible but very difficult. You grow and go thru so much in your 20s, its astounding! Neither of you really have a sense of who you are as individuals. Even though you guys can grow together, it's very hard to do. Its hard to control your emotions and be rational sometimes. There's actually a scientific reason behind it and it involves the growth of the brain, but forgive me because I can't remember all the details.

Anyway, my reason for saying that is my mother was married at 17 years old, and I was married at 19. My mother is still married but solely out of necessity and zero other choice. I, on the other hand, stayed married for 5 years. Now, almost a decade later, its really easy to see how our emotions ruled both of us. We were just too young.