Which excerpt from "The Evacuation" is the best example of the author's personal theme during her evacuation to Cornwall?

Can you imagine people doing that today--parents allowing their children to be taken to a strange place, to live with unknown people?
They expected us to be dirty, full of lice, and crude. (You know, to be honest, some of us were, but still, we were just kids!)
I kept telling myself, "Pull yourself together, pull yourself together," so I wouldn't cry.
"We's together. Where she goes, I go, 'cos she's my sis and you can’t separate us."