fexus wrote:
It doesn't make sense. At all. Why the heck did Bra suddenly want to be in a full committed brother sister relationship with Gohan? She has a whole different family.
She likes them and doesn't want to feel that she isn't as part of the family as the others are. And she especially doesn't want the members of Goku's family to think she is any less than family. Since all the members of Goku's family have the special characteristic of having a surname, which is a rare thing, Bra insists that people use the surname for her as her way of saying "don't you dare forget that I am every bit family to you as the rest of Goku's family". It's a sore spot for her due to the strangeness of how the two families are connected through Vegetto. The rarity of the existence of a surname only intensifies her desire to be called by it since it's a very defining characteristic of the members of Goku's family.
She could, obviously, not be as abrasive as she is about it, but that is her personality. She is abrasive.
It's not useless to compare them. Heck lets compare them to everybody else. Trunks, Gohan and Goten isn't like this. Even Bra when she's only the daughter of Vegeta isn't like this. Why should Bra that get at least half of Goku's gene be a super bitch all of a sudden?
It's useless to compare them as if they were the same person, like, for example, when we compare Gohan from universe 16 and to Gohan from universe 18. If we don't forget that the Bras are not the same person, but more like 3/4 sisters or something, then, sure.