You're totally missing the point. What happens when all those students become capable of proving the earth is a sphere on their own?

Mostly, the reason flat earth still persists is because there's a bunch of "government indoctrinated" people out there with almost no grasp of science and very little understanding of logic and less of history. The flat earth was disproven about 200 bc using math, a couple sticks, shadows, and some footwork. You too can reproduce the experiment should you wish to, and you can do it anywhere on earth.