Eh, way back before Babylonian money magic destroyed the value of a penny, there were probably plenty of use cases for a half piece. Which is probably why we also had two and three cent pieces in circulation back then. But now that inflation has wrecked everything, maybe they should swap out everything smaller than a quarter and bring back zinc versions of the old larger denomination coins like half eagles and double eagles.
The double eagle ($20 FV) was basically a 1ozt gold coin. Only withdrawn from circulation thanks to that commie cripple kike (((Roosevelt))) in 1933.