The man might be shivering because he didn't wear warm clothes or maybe some magic or curse made the temperature drop. It all depends on the plot and imagination of the cartoon creator.
Maybe it's because it's really cold in the cartoon world.
Well, there could be a few reasons. It could be that he's lost in a snowy area or got caught in a cold storm. Sometimes in cartoons, these things happen for the sake of the story and to add drama.
Maybe it's because he's in a cold environment and doesn't have enough warm clothes.
It could symbolize fear, cold, or maybe a reaction to a scary situation. It depends on the context of the cartoon.
Maybe they are in a cold place or they got scared.
Maybe the kid is in a cold place or got scared by something.
Maybe she's cold because she's outside in the winter without a warm coat.
Maybe she's cold or scared. That's a common reason for shivering in cartoons.
Maybe she's cold or scared. That could be the reason.
Maybe it's cold or scared. Could be a part of the story's humor.
Maybe they're in a cold place and don't have enough blankets. Or it could be part of a scary dream.
It could represent fear or being cold. Maybe it's a way to show a vulnerable moment for the character.