Nathan and Rukmani are two characters that represent tradition in the face of change. In the case of Nathan, we learn that he is a traditional man because of the way he works and thinks about life. Nathan is a traditional man, hardworking, in a traditional profession. He accepts traditional values, such as those that make him feel attached to the land he works. On the other hand, Rukmani is also traditional, although slightly more open to change. She is also connected to the land and fertility, and has traditional ideas, such as those that often conflict with Kenny. However, throughout the novel, Rukmani becomes more comfortable with change.
Personally? Pasta and sandwiches are all I have to eat so just be default I appreciate pasta and sandwiches. This bias makes it hard for me to eat anything else so I think a lot of what influences likes and dislikes is how the person grows up.