hold it all inside??

WHY?
Hold it all inside ! Don't even show that you are weak! Don't even show that you are sad!
We all say these things like they were sin , you shouldn't let other know what you fell! But i still keep asking why?
Why is that better? There is no answer ! We don't show others what we feel we want to be stronger better than the other! whatever .... We are lying our self and everyone around us! No matter how hard , strong and happy we are i must ask you what is in our soul?
We judge those who are weak or sad! We are wrong not them ! They are honest we aren't! Why means that we are perfect if we pretend to feel ok and smile when we want to cry?
Pretending and pretending till we will got mad!
I'm really curious why we judge for example a man who is crying ? Why we don't understand that person who is honestly saying that a broke up hurt him?
Is there a law or order that we must be happy and strong? No there isn't so don't hold it all inside show that you are happy, sad, amazed, lost etc. We are all human beings so we should act like this! Remember no one is perfect!
Do you agree?