@starburst98 My dad once told me a story about a wife that whenever she was going to cook chicken she would cut one leg of it and then put it in the front part of the tray before taking it to the oven. The husband, After witnessing this several times, got curious and asked his wife why she did this. She told him that she actually didn't knew, she was just preparing the chicken the same way her mother used to do it. One day they went to visit the wife parents and the husband asked her mother in law for that peculiar cooking method. The reason was that at that time, their oven was too small and the whole chicken didn't fit whitout cutting one of the legs.
The thing is that people do what they learn is "right" and most of the time they never question it. I don't think they are dumb, they just think that there aren't any another methods.