But why do you care then? Why do you have a rooting interest in any of the tribes if you don't care about them as a character? It's hard to me to imagine caring about a character without getting to know them or seeing what the character cares about. And that means seeing them love, and lose, and have emotions. It's exploring the inter-personal relationships that builds that emotional connection to the character. To me, that is how you get attached to a character and care about what happens to them.