Translation of primitive in German

We want to fly there again on Christmas, depending on Jenny's work. Maya entered kindergarden last week, and there were a lot of tears (mainly by her mother and not by herself. I guess that is natural.
But we need to asked ourselves why we actually are built in such a way that we so easily dislike others and build stereotypes. What leads to such behavior even in well educated individuals?
She claimed that in order to be old, one would need to have a baby. She touched a very sensitive point of every woman around thirty five; today we have a wonderfull daugther. The converstion with her was nice.