The document discusses some key differences between restaurants in Hong Kong compared to other parts of the world. In Hong Kong, it is common for entire commercial buildings consisting of 10 or more floors to be filled exclusively with restaurants. This is unlike other places where typically only the ground floor is used for restaurants. The document suggests that as land space becomes more limited in Mumbai, it may start to emulate this aspect of Hong Kong's model, with restaurants occupying higher floors of commercial buildings more frequently than seen elsewhere globally.