In the 20th century, broadly, it can be seen that flight fields are developed and extended and there are several catagories of classes such as, economy, business class and first-class. Most poeple travelled on economy class becuase it has a lower price. Other classes, they have higher prices and very less people can book for these catagories. In this essay, the discussion briefly about why some people thinking that the only benefits only for the first-class people. In my opinion, I disagree and I think all kinds of classes have benefits based on specific things