Commencement is life's great ceremonial beginning, with its own attendant and highly appropriate symbolism. Here we are on a literal level palying field. That matters. That says something. And your ceremonial costume is shapeless, uniform, one-size-fits-all. Whaterver male or female, tall or short, sholar or slacker, each of you is dressed, you'll notice, exactly the same. And your diploma, but for your name, are exactly the same.
All of this is as it should be, because one of you is special.
You are not special. You are not exceptional.