Is popular literature a legitimate subject to study in a Literature class? Why or why not?

In my opinion, anything that can reflect some of the culture and it is very known by the people because of the similarities that has with cultural aspects, I considerate popular literature worth to study it and analyze it during Literature classes. Certainly in the beggining, I was sure that popular literature was not worth it to read it, but as we are seeing their language, how that stories are related with their historical events, with their culture and people, I started to change my mind. Popular literature is the key to start analyzing some Literature concepts. There are very easy to detect and you can have an idea of their language and how the people are to each other. 

 I see for example, Naruto as popular literature and I think that we are seeing many aspects that maybe we can see them in any other novel but in different way. To close up, I got reallt fascinated of all the things that can be in popular literature not only of Japan, but of other parts of the world. Because ultimately, popular literature is more read by teenagers because of trends than famous novels that are also read, but not as the same level as popular literature this years.