Children have a lesson adults should learn, to not be ashamed of failing, but to get up and try again. Most of us adults are so afraid, so cautious, so 'safe,' and therefore so shrinking and rigid and afraid that it is why so many humans fail. Most middle-aged adults have resigned themselves to failure.
I suppose a good director is like a teacher. I think that someone like David Cronenberg was very much like a teacher, because there's an openness, but a certain set of rules of behavior, and a certain conduct expected. But there's an atmosphere that's relaxed and conducive to exploration, and that is created by someone like Cronenberg.