You are so right, modern society expects one to stay positive even when facing trauma as if burying one's face in the sand will make the hurt or whatever we're going through, better! That repression of emotions causes mental and even some physical illnesses.
I believe we are here to learn lessons that we can hopefully pass on to those we come into contact with and further believe our heavenly Father often shakes His head at what His children are getting up to, I may be wrong but that is just my belief.
Thank you for this lesson.