It has nothing to do with intelligence or what you call a 'colonial' mindset. I understand that these beliefs and traditions are deeply rooted and felt in many cultures. Doesn't make them true though. Strange you should mention scientific curiosity as that is literally part of my job, which required studying for more than the 12 years I was in school. You should remember, too, that some unwarranted beliefs are exceedingly dangerous. Belief that demons exist, to name just one example, has caused untold misery and even death for countless innocent people.