Sorry I disagree....
A dad forcing a 11 year old girl to marry a old man...is different than a girl chooses to have sex or drink....
The difference is choice and consent. In the case of the Yemeni girl, she had no choice and an adult made the decision to marry her off and then another adult got her pregnant at the age of 11 and she died as a consequence of those actions.
I stated previously that you are looking at it from a certain cultural perspective. Who is to say that one culture is better than another. If people are happy with their culture then I am happy for them. I am not one to judge them.
In this case the father made a decision in the interest of his family and his daughter. The daughter agreed to get married and naturally as a couple they tried to have a baby but unfortunately she died.
It would have been better for her to marry a few years later. It would have been better to wait a few years before trying for a baby. That is as far as I will go. I have no right to tell others how to run their lives. I will not try to impose the western cultural viewpoint on others. I know from experience that we should appreciate our cultural differences as that is part of being human and understanding our humanity.