Edited sentence: A bachelor's degree isn't sufficient qualification for a growing number of careers.A greater portion of students live at home either during college or afterwards.As a result, for some, college in America is no longer seen as the gateway to adulthood and more as an extension of high school.Employees of a local bus company have indicated that their ban is due to excessive parent participation in the bus ticket purchase process when cellular phones are in play.Higher education is no longer the luxury it once was.It is now a requirement for many jobs, particularly professional or white-collar positions, and has become available to a greater portion of the population.Several businesses on the UI campus have also banned cellular phones.Some parents have formed an organization, College Parents of America, to lobby for their interests.Some universities have begun to ban the use of cellular phones in college offices, to snip the cellular-umbilical link.The General Curriculum office at the University of Illinois, for instance, has approximately ten signs posted in the student waiting area which read "NO CELL PHONES".The changing nature of college in the United States may also play a role as well.The drinking age has not only been raised to 21 in every state but enforced vigorously in many of them.The tuition cost of higher education has more than doubled since 1967, even factoring in inflation