One benefit is that it makes the animals happy. Happy animals are more likely to be friendly towards us. For example, a well - treated dog will wag its tail and be excited to see you.
Being nice to friends can lead to more enjoyable social experiences. If you are kind and positive in your interactions, your time together will be more fun. Also, it can expand your social circle. When your friends see how nice you are, they are more likely to introduce you to their other friends. Moreover, being nice to friends helps in reducing stress. A harmonious friendship where everyone is nice to each other is a source of comfort and relaxation, rather than a source of worry or conflict.
Perhaps in a fanfiction, a time - traveling scenario occurs. Vegeta travels back in time and ends up in the Naruto universe. There, he falls in love with a kunoichi and has a child. Generations pass, and Naruto is related to that child's line, thus making him related to Vegeta. It's a wild and wacky idea but could make for an interesting fanfiction.
One idea could be that Bakugou wakes up with a strange quirk malfunction that makes him overly nice. He starts complimenting his classmates, which leaves everyone in shock. For example, he tells Deku that his analysis skills are actually really impressive. This throws the whole class dynamic off, but in a really interesting way.
Well, it would be a really wild concept. Naruto's ninja world and Vegeta's Saiyan heritage are so different. Maybe Naruto would teach Vegeta some ninja skills like stealth and using chakra in unique ways. And Vegeta might introduce Naruto to Saiyan combat techniques. It could be a story full of clashes between their different values and powers, but also of them learning from each other.
A possible plot could be that they are transported to a parallel universe where male Saiyans are able to get pregnant. They meet alternate versions of themselves and their friends, and have to adapt to this new world while dealing with their pregnancy. This could lead to many adventures and self - discovery moments for both of them.
Sakura might be initially shocked and worried. She'd be concerned about how this new entity within Naruto could affect his health and stability. But she'd also be curious to see if this could give them an edge in future battles.
Well, in fanfiction, anything can be possible. Maybe in a multiverse concept where the boundaries between the Naruto and Dragon Ball universes are blurred. A wizard or some super powerful entity could have manipulated events to make Naruto Vegeta's son. It could also be a result of some time - travel shenanigans where Naruto's origin gets intertwined with Vegeta's family line in an alternate timeline.