The Rawlins Scene

I think that Cormac McCarthy puts the scene where you follow Rawlins instead of John Grady Cole because at the time John Grady Cole is really just sitting outside and what is happening with Rawlins is more exciting than what John Grady Cole is doing. I also think that because McCarthy has stayed with John Grady Cole the whole time the reader can assume that nothing significant will  happen to John Grady unless the reader is following him.