Twixters

On page 170, Bauerlein writes about the choices that Twixters make- they pass through service jobs such as waiters, clerks, nannies, and assistants instead of pursuing long term carreer plans. He writes that they move back home with their parents or into a house or apartment with other Twixters and states that we do not form long term relationships leading to marriage. If this is the case, why does everyone (adults) say that you have to go to college and get a degree in order to obtain a job? I have been told how much competition there is in applying for a job. Why, if most Twixters settle for the string of temporary jobs like waitressing, is it so difficult to get a "real job" that will be a long term carreer? I just dont understand.