Probably depends on your age. Did you grow up with Pluto being a planet? Having to learn about it in all levels of schooling as a planet? Seeing images of all the planets and Pluto is included?

Or did you grow up afterwards and learn from elementary school that Pluto is not a planet so people who still insist that Pluto is a planet seem anachronistic?

It would be like Hydrogen being removed from the periodic table and being told that from now on Hydrogen is no longer considered an element. Would you still try to say that you feel that Hydrogen really is an element, even though you are wrong and Hydrogen is not an element and never should have been included on the Periodic Table in the first place?