As it happens, I&#x27;ve tutored people in the middle of high school geometry. Radians confuse them. Full stop. If there is something that can make it easier to understand, while at the same time sacrificing absolutely nothing of mathematical consequence, it&#x27;s a good thing.<p>What confuses <i>me</i> is not the relevant issue. I&#x27;ve got $BOATLOADS of higher ed. I&#x27;m not the interesting case.