"College is not the thirteenth grade."
How many of you can remember hearing something to that effect being announced at freshman orientation when you were a student, starting out on your college journey? You may have facetiously gasped in surprise. You may have rolled your eyes at the absurdity of the statement. (You were seventeen- or eighteen-years-old at the time, so that would have been totally normal, right?) You may have laughed it off.
Or you may have had a moment of clarity and a lightbulb popped on.