Obviously, Dora is a main character. There might be her parents who help her get ready for school.
The main character is Dora. Her friends at school are likely to be characters in the story. There may be a school principal or other school staff members. And don't forget her family members, especially those who are related to her school - going routine, like her mother or father who might give her some advice or help her with her schoolbag before she leaves for school.
One thing we could learn is Dora's attitude towards school. If she is excited to go and learn new things, it can inspire children to have a positive view of school as well. Also, the story might show Dora's relationship with her teachers and classmates at school. Whether she is friendly and helpful in the school environment. This can teach kids about good social skills in the context of school.
Most likely Barney is the main character. There may also be teachers, classmates, and perhaps a school principal.
In the 'bono goes to school story', Bono is the central character. However, his parents could also be considered main characters in a sense. They are the ones who send him to school, and their influence on his school - going attitude and behavior might be part of the story. Also, any special friends he makes at school, like a best friend who he shares all his school secrets with, would be among the main characters as they contribute to the plot and Bono's experiences at school.
Probably Franklin is the main character. And there might be his teachers and classmates as important characters too. His teachers would be involved in his learning process, and his classmates would be part of his social experience at school.
Froggy's classmates could also be main characters. In a school story, the interactions between Froggy and his classmates are usually important parts of the plot. They might study together, play together, and experience different things together, which makes them important characters in the Froggy Goes to School story.
David is surely an important character as the story is about him going to school.
Pepper is surely one of the main characters as the story is about Pepper going to school.
Well, Pippi is the central figure in the 'Pippi Goes to School Story'. Alongside her, there could be a friendly classmate who becomes Pippi's first friend in school. And there may be a headmaster or principal who has to deal with Pippi's unique personality and the situations she creates in the school, like when she does something unexpected during an assembly or in the classroom.
Well, Ottoline is surely one of the main characters as the story is about her going to school.
Perhaps some of Noddy's classmates could also be main characters. They would play a role in Noddy's school experiences, like sharing toys or helping each other with schoolwork.