15 vs 18 credits?

I don’t understand. You need 1 minor to graduate. You only need 1 atmospheric class to get the atmospheric minor, 2 for a chem minor, and 4 for econ. Why would you switch minors so late in the game? You went from needing 4 classes to graduate (3 math and 1 Atmos. science) to needing 7. So now instead of graduating in summer 2020 or fall 2020, you’re pushing it to spring 2021. How many more semesters are your parents willing to pay for?