Answer:
It is not at all okay to be superstitious and it can be justified by following examples :
A. A very famous Bollywood actor always releases his high budget movies on the occasion of Christmas with regards to superstition. This sometimes lead to failure of movie due to the lost benefit of Friday and people usually do not watch movies on holidays.
B. There was a student who had a superstition of not eating anything before one hour exam. Leading to such believes he ended up being sick on exam center and failed eventually.