Mentally, Ochaco would struggle. She has the mind of an older person but is trapped in a child's body. She would have to deal with the frustration of not being able to communicate as effectively as she used to. And she might feel a sense of loss for her normal life and the progress she had made in her hero training and relationships.
One possible plot could be that Ochaco wakes up one day as a kid and has to figure out how to reverse it while also dealing with her now child - like body. She might struggle with her hero training as a kid, like not being able to reach high places or lift heavy objects like before. And she could have cute interactions with her classmates who are now much bigger and older - looking compared to her.
One challenge is communication. Dragons might not communicate in the same way as humans. So the human - turned - dragon has to figure out how to interact with both humans and other dragons. Another is dealing with the new instincts. Dragons have different survival instincts, like hoarding treasure or being territorial, which can conflict with the human's former way of life. They may also face threats from dragon hunters or those who see them as a threat to the existing order.
One challenge is communication. If they are turned into a Pokémon that doesn't have a human - like language ability, it would be hard to convey their thoughts and needs. Another challenge is adapting to a new physical form. For example, if they become a flying - type Pokémon, they have to learn how to fly which is completely new to them as humans. Also, they may face danger from other Pokémon who see them as either prey or competition.
She might face opposition from the traditional wizarding community. Since Hermione is often coming up with new and untested ideas, some conservative wizards might not accept her inventions. They might think that these new inventions go against the old - fashioned ways of magic and should not be allowed in Hogwarts or the wizarding society at large. For instance, if she invents a new form of magic transportation that is different from brooms or apparition, the old - school wizards might be against it.
The new kid at school may face challenges in various aspects. Academically, the teaching methods or curriculum might be different from what he was used to. Socially, he has to deal with cliques and find his own place. There could also be cultural differences if he has moved from a different area. For example, the way students interact or the unspoken rules in the school environment might be new and confusing to him.
Robin could face challenges in her relationships. Her friends might have different opinions on how she should handle the pregnancy. Her partner, if there is one, might not be as ready for a baby as she is. For example, if Barney is the father, he has a history of being irresponsible, and he would need to grow up quickly, which could put a strain on their relationship.
Mabel would likely struggle with telling her family. Dipper might be shocked and not know how to react. Her parents could be disappointed or worried. She would also face challenges related to her own future plans. Maybe she had dreams of traveling or exploring more of Gravity Falls, but now she has to put those on hold for the baby. And there's always the fear of the unknown, like what if there are complications during the pregnancy or if the baby has some sort of special condition related to the strange nature of Gravity Falls.
In this fanfiction situation, a big challenge could be communication. Vegeta is not the most talkative or emotionally expressive character. So, when Bulma is pregnant and has all these hormonal changes and needs, he might struggle to communicate effectively with her. Also, they may face challenges from the Saiyan - human cultural differences. Vegeta's Saiyan upbringing has different values compared to Bulma's human family traditions, and this could cause some friction during the pregnancy.
Kiara could face the challenge of protecting her baby from outside threats like hyenas or other predators. The Pride Lands may not always be a safe place, and she has to be vigilant. Also, she might struggle with teaching the baby the right values in a changing Pride Lands where new ideas and situations are emerging.
Social challenges would be huge. Society has different expectations for women and men. He would have to learn new social cues, like how women interact in groups or how to respond to male attention in a way that is appropriate for a woman. Also, he might face discrimination or over - sexualization because of his new gender.