Most people like to talk about other people. It does not make any difference who they are talking about: their relatives including mother, father, sons and daughters, coworkers, people they like and dislike, people in the limelight, ad nauseum!
But the reason why? It is very simple – it is easy to talk, you don’t have to think about it. It comes out naturally.
It seems to me that people who talk about ideas are more open minded.
People who talk about things are similar to those that talk about other people! No brains.