group
Yesss, I have some sibling relationships (usually fairly strained ones but still) and in none of them is the older sibling shown as evil or bad just because.
Joan and Nell are pretty close; Giana is never shown as bad for being more cold, just a bit standoffish to Vivian; Victor values Claire and her safety more than just about everything else; Morgan tries her hardest to stay in touch with her sisters and brother; Oliver doesn't have a close relationship with Therese, but he still loves her and trusts her; Emily's death is literally the catalyst for the rebellion; Daniel is kind of distant but still loves Della; Alice watches over her sister and brothers quite a bit; Francesca will do anything to protect her sisters; Amira doesn't always spend tons of time with Meg and they're distant now, but they still love each other; etc.