Maybe it's part of a funny or unique story idea. Maybe the tree got sick from something in the cartoon world!
It's probably just a wacky and imaginative idea the cartoon creator came up with for some fun and humor.
Maybe the kid caught a cold or has some kind of allergy. That could be the reason for the coughing.
It could be because they were exposed to something in the environment that irritated their airways. Or perhaps they were playing too hard and got out of breath, causing them to cough.
Maybe the kid has caught a cold or is allergic to something in the cartoon world. Simple as that!
It could be that the kid was playing too hard and got out of breath, causing them to cough. Or perhaps they were in a dusty environment.
Maybe he caught a cold or was exposed to something irritating in the cartoon world.
Maybe she caught a cold or something in the cartoon world. Who knows!
Maybe he caught a cold or has some breathing problems.
The cartoon woman might be coughing because of allergies. Maybe there's pollen or dust around that's triggering it. Another possibility is that she's got a viral infection.
The cartoon boy could be coughing because he was exposed to something in the environment that irritated his throat. Or, it could be that he's coming down with an illness. It's hard to say for sure without more context.