To answer the original question, I would like to see an ummarried couple, or triad or Denobulan type family etc with children as much as I would like to see the same family with married parents. Not at all unless it has something important to do with the plot. Were the little girl's parents in STID married? I don't know and I don't care.
I'd rather them spend time showing a woman captain/commander who wasn't someone's girlfriend or Admiral's daughter. And only that too if it adds to the plot of the movie.