The society has fed people with the false idea that in order to be successful, committing failure is a big no-no. Receiving critics is good in order to grow and learn but the society criticize people improperly and cruelly that it hurts ego to the level that it will harm oneself, than to motivate. The society is always there to criticise people's flaws so sometimes the wrong idea of achieving perfection comes to their mind so to be free from such critics.
People are made beautifully imperfect others just know how to look perfect, while others don't. The society treat those looking perfect-like better than those who are not. Then starts the treatment difference. Insecurity, human pride, heart ego pain results from that. Human pride is another thing that adds our fear of failure. Because we have this human blood within us, it is in our nature to have this goal of wanting to be above others. Thus, committing failure will make us feel less because of that thought that we are in a competition of that the-winner-will-go-to-most-perfect.
We look up to those who are successful men. We are inspired by them that out of a seconds we suddenly think of living a life as they did. It is never wrong to get inspiration to others, to be inspired by others, to be amazed by others' success but to imitate and to follow their every single foot step.. is a big no. You will just keep on failing yourself thus it will depress you. Failure depress people. It's creepy because depression is always an outcome of failure. We feel failure once we dont meet our expectation.
There are a lot more reasons we can find around us that will testify that this 'failure' thing is really creepy for the human race. But indeed, if you sit alone for an hour inside your room and just try to reflect and realize how those failures you had in life changed you inside and out, then you'll know the reason behind those. Then try to figure it out yourself, is Failure indeed creepy? Or, it is just us who are coward?