I have seen a few cases where people put up a wall so that they won't be affected by things that affects the emotional side
I am kind of that , and I see some people around me as well. I would say, we are making ourselves stronger this way - not to be interpreted as pessimism though.
Yeah, it should not be interested as pessimism. I believe sometimes we need to protect ourselves because irrespective of what we might think or feel, what others say or do would always infulence us. Thanks for the comment and support.