Nice post @nomad-magus and I agree to people's point of views varies everytime at any certain topic. As for that dream, maybe his father just want to expand his son's knowledge about the real life beyond their tradition. Just a maybe. But dreams are dreams, one must not also put there whole life to that because the reality is in front of you. He could also must put so much big deal on it. Still, no matter what other people say, how you feel and see about it still matters. It is still up to him how he accept it in his life.
RE: "My dad appeared in the dream and his behavior shocked us" - Explaining a message from a death person