what is the purpose of this passage?
"After crisscrossing the United States many dozens of times to film my travel show, Roadside Surprises, I've learned that the labels we use to group people don't mean much when you look them in the eye and hear their stories. Political party, social class, demographic information . . . when you meet an individual person, you quickly see there's a lot of gray area and that no one fits into a simple little collection of labels."