The things that make you happy, do so because you care about them. Of course that's true for family and friends, but it's also true for the other things in life. Hobbies, for example. Sports make people happy because they care about the team they follow, or the players they watch. Video games make people happy because they become invested in the gameplay, story or characters. Movies, TV, it's all the same. We don't enjoy these things as a detached being, removed from the world. We enjoy them because we care.