It could be that the cartoon kid has lost their way or is being chased by a villain. That's why they're yelling out for assistance.
Maybe the kid is having a tantrum or is really excited about something.
Maybe the kid is having a tantrum or is scared of something.
Maybe the kid is in trouble or wants something urgently.
It could be that the dad is having a bad day and is taking it out on the kid. Or perhaps there's a misunderstanding between them.
Maybe the kid was misbehaving or not following some rules. Moms might yell to get the kid's attention and make them do the right thing.
It could be that the kid has been disobedient and refused to go to bed when told earlier. So the dad is getting frustrated and yelling to get the point across.
Maybe the kid was taking too long to do something and the person wanted to hurry them along.
The cartoon face of a kid yelling might be depicted with tears in the eyes, a scrunched-up nose, and a look of pure frustration. Different artists have their own ways of showing this emotion, but these are common elements.
Maybe she's angry or scared. It could be a reaction to something that happened in the story.
The cartoon man might be yelling because someone's bothering him, or he could have had a bad day and can't hold it in anymore.