Pluto has been demoted (I know it's old news, but I have been busy). Should Rhode Island worry about its statehood?
It is unsettling to find that something you were taught in school turns out to be wrong. This was probably a more common occurrence for earlier generations. But this Pluto thing is more about semantics than discovery.
At one point, the U.S. decided to stop adding stripes to the flag and bring the number back down to 13, where it remains today. Why not do the same with planets? Nine is a good number. Quit messing with stuff.