One subtle point that is being missed (from the comments I read) is the concept of sharing food with strangers. When I came to the US from India (many years ago

One subtle point that is being missed (from the comments I read) is the concept of sharing food with strangers. When I came to the US from India (many years ago), I used to surprised that my American friends would just open up a pack of chips and start munching away. In India, it would be expected to at least offer the chips to the people around you.