I know for my wife and I, we always loved the idea of being young parents. It is an incredibly inspiring and challenging job being a parent, and as it turns out, being young really helps you keep up.
I think it's a little simplistic to explain a work through the psychology of its author. In other words, that Haneke has emotional problems, so I don't have to take his films seriously. By using this argument, the viewer retreats from the challenges of the film.