Lower-class = can't Upper-class = won't The word "picky" demonstrates the social wrapper in action: lower-class "can't eat that food - I'm scared of it / it

Lower-class = can't Upper-class = won't The word "picky" demonstrates the social wrapper in action: lower-class "can't eat that food - I'm scared of it / it might throw off my digestion / not be worth the price" is disguised as the upper-class "I could eat that but would rather have..." to save face.