I agree to marry a little bit late at after 25 years old, for both sides to decide what life do they want, but it doesn't mean it is a restrict rule, there are exceptions both good and bad.
Though it is true that every one need an inside partner, some need a human, some need a career, but just fulfill life, that's all.
But, whatever you choose, be responsible to the result coming, so that no need to say sorry to your heart.
Can she have a baby, at that age, plus, I have heard from a man aged at 34 at least after sexed with 13, then knew, and said the same thing, she didn't look like, though no words to say, silly world, God, help. Don't say that accept the new stuff, what is called updated, what is called be careful, and what is called be brave, and what is called be responsible, tell us. :'(