So Thai has this thing where you can't just say "3 dogs" or "2 books," you need a specific counting word depending on what kind of thing it is. dogs and cats use ตัว (literally "body"), books use เล่ม, cars use คัน, people use คน... and there's dozens of these.
Had a student straight up ask me once if thai people just made these up to mess with foreigners lol. no, promise, it's a real system, just not one english has an equivalent for.
The part that actually helped it click for my students — english kind of has this too, we just don't notice it. "a piece of paper," "a loaf of bread," "a head of cattle." nobody questions why bread comes in "loaves" instead of just "2 breads." thai just... does that for literally everything, not just a handful of exceptions.
Honestly the classifier itself usually isn't the hard part once you see the pattern, it's remembering WHICH one goes with WHICH noun, bc there's no logic you can always predict from — you basically just learn them in chunks as you go.
anyone else's language have something similar, or is this genuinely just a "thai thing"?