In "That's Also Something You Eat and Drink with Scones," what does China Iron come to realize about drinking tea, using cotton towels, and so on?

China Iron begins to understand that everything surrounding her was sourced and transported through the suffering of laborers--and in the case of cotton, of slaves. She sees that everything comes at a price, and believes, as Liz does, that everything that lives can only do so because something else dies.