Aren't the "tween" years awkward enough?

Now, in Saudi Arabia, tween-age girls can be married off to old men by their fathers, but can't file for divorce until they reach the age of majority.

A Saudi court has rejected a plea to divorce an eight-year-old girl married off by her father to a man who is 58, saying the case should wait until the girl reaches puberty.

The divorce plea was filed in August by the girl's divorced mother with a court at Unayzah, 135 miles north of Riyadh just after the marriage contract was signed by the father and the groom.

Lawyer Abdullar Jtili said:"The judge has dismissed the plea, filed by the mother, because she does not have the right to file such a case, and ordered that the plea should be filed by the girl herself when she reaches puberty."

I suppose it's somehow internally logical that the girl is young enough that she has to follow her father's wishes to get married, and so is not old enough to file for divorce -- and even, though of course sexist, that her father can sign her marriage contract, but her mother cannot file her divorce.

But taking a step out of the rabbithole, and setting aside the "creepy 50-years-her-senior groom" thing: Doesn't it seem like if she's too young to sign the marriage contract, she's too young to get married?