If Goku was raised on Planet Vegeta, he would have a completely different upbringing. Firstly, he'd be surrounded by other Saiyans, and his power level might develop in a different way. He might not have the same kind of moral compass that was influenced by Grandpa Gohan on Earth. Instead, he'd be taught to value strength and victory above all else. Also, his relationships would be different. He might not have the same friends like Krillin or Bulma. He'd be part of the Saiyan hierarchy and might be involved in battles for the planet much earlier in his life.
Well, he would probably be a very different person. He might be more in tune with the Saiyan warrior culture. He could be more aggressive and less empathetic compared to the Goku we know. He would grow up learning the ways of the Saiyans on Planet Vegeta, which means he'd be trained to fight and conquer from a very young age.
In a fanfiction where Goku is raised on Planet Vegeta, there are numerous possibilities. He could have a closer relationship with his Saiyan family, perhaps his father Bardock. He'd be trained by the best Saiyan warriors there. His fighting style would likely be more traditional Saiyan, focusing on brute strength and direct attacks rather than the more diverse styles he developed on Earth. His view of other races might also be more in line with the Saiyan's typical view of being superior. He might not have the same love for Earth as he does in the original story, but instead, be more focused on the glory of Planet Vegeta and the Saiyan race.
His power would develop more in line with Saiyan traditions. He'd probably have a stronger base power due to the intense training environment on Planet Vegeta. There would be more emphasis on raw power and combat skills from a young age.
In a 'Gohan Raised by Vegeta' fanfiction, Gohan's personality would likely change a great deal. Vegeta being his mentor would mean a strict and no - nonsense upbringing. Gohan would probably be more confident in his Saiyan heritage. His fighting style could be a blend of Vegeta's elegance in combat and his own natural potential. Also, the relationship between Gohan and other characters like Piccolo or Chi - Chi would be very different. With Vegeta's influence, he might be more rebellious against Chi - Chi's wishes for him to focus on academics.
Well, it would be really strange and interesting. Vegeta is from Dragon Ball, a very different universe from Harry Potter's. If Harry was raised by Vegeta, he might be trained in combat from a very young age, like how Vegeta trains Trunks. He could be more aggressive and less reliant on magic wands, perhaps using his ki powers instead. And his attitude towards enemies would be more like Vegeta's, full of pride and determination.
In some fanfictions, Vegeta could be under the influence of some external force. Maybe an evil entity has convinced Vegeta that kidnapping Goku is the key to achieving ultimate power. Vegeta, being power - hungry as he is, falls for it and kidnaps Goku. But later, he realizes his mistake and has to make amends, which can lead to an interesting story arc of redemption and friendship building between the two Saiyans.
In Naruto fanfiction, their relationship could be a bit more complex. At first, they might be rivals, but as they face common enemies in the Naruto universe, they could start to respect each other more. They might team up to fight against powerful foes like Madara or Kaguya. Goku's easy - going nature could gradually soften Vegeta's prickly exterior, and they could form an unlikely friendship while still maintaining their competitive streak.
Well, it could be really interesting. Harry would probably grow up with a very different set of values. Goku is all about strength and protecting the Earth in a very physical way. Harry might learn martial arts instead of magic at first. He could be more straightforward in dealing with his enemies, using punches rather than spells. And his idea of friendship might be more like Goku's, based on mutual respect for power and a shared goal of protecting those in need.
The story could involve Goku having a more modern upbringing. Bulma's family is wealthy, so Goku might live in a big house and have access to all kinds of luxuries. However, he would still have his Saiyan nature. So there could be a conflict between his Saiyan instincts for fighting and the more civilized life Bulma tries to give him. Maybe he would be sent to a normal school and have to deal with bullies, but he would use his Saiyan strength in unexpected ways.
Well, Naruto would probably be an incredibly powerful fighter from a very young age. Goku's training methods are intense, so Naruto would grow up with superhuman strength and speed. He might also inherit Goku's love for food and his kind - hearted nature. His ninjutsu skills could be combined with Goku - like physical power, making him a nearly unstoppable force in the Naruto universe.
Harry would probably be more aggressive in his personality. Vegeta's Saiyan nature is often associated with a certain level of aggression and competitiveness. So, Harry might show these traits more, not shying away from a fight and always striving to be the best in any magical situation.
He would likely have enhanced physical strength and speed, similar to Saiyans. Maybe he could fly like them too. His combat skills would be more brutal and direct, rather than the ninja - style he has in the original. He might also develop some sort of energy blast ability like Vegeta's Galick Gun.