Finding the right amount of description can be a tricky thing. Too little and the story won’t feel real. Too much and the reader starts to skim. Either way, we lose the reader’s attention. And once lost, it’s hard to get back.
Nobody makes it through life without touching the lives of others. While the protagonist and antagonist are the life-blood of the story, secondary characters serve their own purpose and need to be as realistic and relatable as the main characters.