The most of airlines does not have economy seats to sit some people who needed to go some where fast and doesn't have to much money to take a seat without meals and drinks. However, its good to have economy seats. Firstly, the most of airlines which do not that have economy seats it's good to have a cheaper flight but if some of airlines does only big travels it's better to have meal, entertainment and drinks because you want to eat something and to spend your time inside the airplane. On the other hand the airlines which have economy seats it is a good idea for small travels inside the country and it is good for some people who do not have so many money and want to go holidays, go for job or go to see someone. To sum up, all airlines it is good to have economy seats to sit some people who needed.