Where does the opinion of younger people come from that they are "entitled" to something? When did a business owner become obligated to hire a specific individual? Of course he doesn't have to hire you. And he doesn't need a reason not to hire you. Unfortunately for you, college kids get a bad rap (generally) becasue they constantly change their schedule due to class workload and projects, and then they need off for breaks and mid-terms and finals. Part-time students really are difficult to plan business needs around. I would imagine he doesn't want a part time person that is still a student for just those reasons. In any case, there are a lot of other stores and jobs that are better fits for part-time workers and students so keep looking and don't get discouraged.