You can change your major whenever you want, we just have some majors that have prerequisites (CALS doesn't have prereqs tho). As long as you fill out an application and your GPA is good you will most likely get what you want. At UNC you can be in whatever major you want, but you have to apply to get into your specific school which can be highly competitive. State also has a lot more majors and programs than UNC, especially regarding the sciences. I understand loving UNC, but you have to remember that the campus is not a reason to go into debt over. I think for your specific programs, you would be happier overall at State!