I'd rather we have dozens of planets, with news articles talking about "new planets discovered"

we can still teach the handful of "classical planets", so we can have posters, or have like periodic tables, and everyone be aware that they might go out of date as more is discoverd.

the solar system will be more exciting and more varied.

also, the "clearing orbit from similar objects" is time and orbit dependent,

larger orbits take longer to clear, which mean in a few billion years ceres might eject pluto and become a planet?

or we could have gas giants beyond pluto (like this hypothetical 9th planet ) which it would be unlikely it has cleared its orbit, so we could have a planet larger than Jupiter which we would call a planet, but if we discover another planet in its orbit (too large to clear), then we will have to say that it is a dwarf planet.

NASA says there are only 5 dwarf planets in the system. But, it's all pretty arbitrary. The line between planet, dwarf planet and asteroid are all pretty fuzzy.

An alien civilization looking at the Sol system might say that it's only got one planet, Jupiter. Everything else is so much smaller that they're not really significant.

Another logical cut-off would be that planets had to be bigger than any moons in the system. If we went by that standard, Jupiter, Saturn, Uranus, Neptune, Earth, Venus and Mars could all still count as planets, but Mercury would get ditched because it's smaller than Ganymede and Titan.

What's funny is that we're still using the name "planet" which comes from "asteres planētai", meaning "wandering star". For the Greeks what mattered wasn't the size or the mass, it was how bright they were. That meant that a tiny object near the sun like Mercury (Hermes) got the name planet, because despite being tiny, the fact it's close to the sun means it reflects a lot of light. And Jupiter (Zeus) and Saturn (Cronus) got named not because they're so big, but because they're big and far away from the sun, which means they reflect sunlight in a similar way to the much smaller inner planets. Earth's moon might have been given the name "planet" if it had been a lot smaller and/or further away.