Can we agree that everyperson has a unique thought process? Yes, we can.
So...having determined individuality, why do manypersons check what is trending as a part of their decision-making? Just asking.
In a review of a product on a popular website, a potential buyer reported that he had seen the item previously but did not purchase because it was not "trending" at the time. He regretted that decision when the item was trending but no longer available.
Trivial example? Yes.