If the laws were written so that I could not fire that person, then I would be forced to hire the person that interviewed the best. The woman I mentioned above would have interviewed terribly, she is very shy. It turns out that this is her first job too, so she has almost zero interview experience.

I would do what any other rational person would do - look at all the candidates and pick the one I thought would be best. As for her nerdy hobbies, I included the description to paint a mental picture. I am fairly nerdy myself, cosplay would be a plus to me.