In reverse order:
1. Gods, yes. Where are the rest of you finding your chatot/what are the rest of you teaching yours?!
2. To be fair, the pokédex classification system calls practically anything mice, including rats, pangolins, shrews, and most famously, vague rodent-lagomorph hybrids. The dex classification system relies more on what a pokémon vaguely looks like (or its most important traits), rather than accuracy … for science reasons.
3. It’s actually true that it’s stronger than it looks—and flexible at that. So really, the note can survive anything short of actually cutting it off, which means it’s one thing about a chatot you don’t have to worry about (besides occasional grooming to keep it free of debris). Your chatot’s vocabulary, meanwhile, is an entirely different matter.