TL; DR: Porque Luke é um Jedi e Leia não é.
No entanto, a Primeira Ordem está ansiosa para matar ambos os irmãos - e em O Despertar da Força , eles chegam muito perto de matar Leia do que matar Luke.
Nota: Itálico nas seguintes citações estão no original; negrito é meu.
O que a Primeira Ordem planejou para Leia?
Eles pretendem matá-la, junto com o resto da Resistência. Ela é inimiga deles. Mas Luke representa uma ameaça diferente, possivelmente maior a longo prazo. Eles usam o Starkiller para destruir a sede do governo da Nova República no Sistema Hosniano, em seguida, apontá-lo em D'Qar, a sede da Resistência - que é onde Leia passa a ser. Se esse ataque tivesse sucesso, Leia teria morrido.
Por que a Primeira Ordem se concentra em Lucas em particular?
Porque ele é um Jedi. Leia poderia ter sido um Jedi , mas não se tornou um. Se Leia sobreviver, mas Luke morre, Leia continua sendo uma ameaça menor (pelo menos em termos de potencial da Força), porque ela é apenas uma sensitiva não treinada. Lucas é um Jedi treinado, então se ele sobreviver, ele pode reconstruir a Ordem Jedi. Leia não pode, porque ela não sabe muito sobre os caminhos dos Jedi.
Poderia Leia se tornar um Jedi neste momento?
Nós não sabemos, mas ela está bem além da idade privilegiada para começar o treinamento Jedi. Em The Force Awakens , ela provavelmente tem cerca de 50 anos de idade.
Durante a República Velha, quando a Ordem Jedi estava se fortalecendo, as crianças começaram a treinar quando eles eram crianças . Mesmo Anakin, que tinha 9 anos quando conheceu Qui-Gon e Obi-Wan, foi inicialmente considerado "velho demais" para começar a treinar:
QUI-GON: I'm afraid not. Had he been born in the Republic, we would have identified him early, and he would have become Jedi, no doubt... he has the way. But it's too late for him now, he's too old.
...
OBI-WAN: The boy will not pass the Council's tests, Master, and you know it. He is far too old.
...
MACE WINDU: He is too old. There is already too much anger in him.
Eles treinaram Anakin apesar dessas reservas, e o que aconteceu? Ele se tornou mau, se juntou aos Sith, ajudou a matar Mace Windu, matou todos os filhotes, ajudou Palpatine a caçar os outros Jedi e se estabeleceu como a segunda pior pessoa que já viveu.
No episódio V, quando Yoda diz a Obi-Wan que, se Luke falhar, eles podem se voltar para Leia, Luke e Leia estão com vinte e poucos anos. Yoda está hesitante em treinar Luke no começo por essa razão:
Yoda: He is too old. Yes. Too old to begin the training.
Yoda o treinou de qualquer maneira, e o que aconteceu? Ele desconsiderou os pedidos de Yoda e Obi-Wan para resistir à vontade de salvar Han e Leia de Cloud City, perdeu uma mão, deixou seu treinamento incompleto, ignorou o conselho de Obi-Wan que ele precisava matar Vader (embora essa parte funcionasse para o melhor ), quase caiu para o Lado Negro, só sobreviveu porque Vader teve pena dele, montou uma espécie de Academia Jedi, viu a sua estrela aluno (e sobrinho) matar todos os outros alunos, abandonou o caminho da Força, e entrou em se escondendo.
A moral da história: quando as pessoas começam a treinar muito tarde, isso costuma levar a problemas.
O que Luke ensinou a Leia?
Não muito. Principalmente como meditar e limpar sua mente:
The room is white and mostly empty. The walls are padded. The windows are many, and the sunlight streaming in is bold and bright.
The only things in this room are Leia and a potted plant.
The plant is a sapling of the sanctuary trees of Endor, though some call it a serpent’s puzzle, named so after the way the dark branches weave together in a kind of organic knotwork.
She grew it from a seed— a small knobby acorn given to her by the little Ewok known as Wicket. She grew the plant in a pot of Chandrilan soil, and to her shock and delight, it took.
It has become a focus of her meditations, as suggested by Luke. She decided, after storming out of the meeting room, that it was best to come here. Best for her to focus on something that wasn’t the state of the galaxy, or the nascent New Republic, or that nagging feeling in the deep of her middle that Mon has betrayed her in some small but significant way.
She sits with it in the middle of the room.
She clears her mind.
And then she tries to feel the tree.
She does this at least once a day.
Leia has never felt the tree.
Not for lack of trying! She sits here. She empties herself of breath, and then she tries to free herself of thought. Just like Luke taught her to. That part works fine most of the time. But he said it was possible to feel the lifeforce of things with the Force...
Luke continues to swear that, with time, she will come to feel the Force just as he does. He explained that it was how she felt his pain back during Cloud City— him hanging there, wearied and beaten and about to fall into the roiling clouds below. He said he’d teach her.
And he did teach her. Some things, at least.
Then? He left.
Just like Han left.
Luke...
- Star Wars: Aftermath: Life Debt
...
After a slow exhale, Leia says: “My brother taught me to center myself. To be mindful of what I’m feeling— a cup to be filled up, he says.”
- Star Wars: Aftermath: Life Debt
Por que não Leia se dedicou a se tornar um Jedi?
Não sabemos todas as razões, mas algumas são mencionadas.
Algumas das razões são reveladas em dois romances canônicos - Aftermath: Life Debt , ambientados em 4-5 ABY, cerca de um ano depois de Endor, um Bloodline , set em 30 DBY, cerca de 26 anos após a Batalha de Endor.
“Did you never consider following in your brother’s path and becoming a Jedi?”
Leia found herself caught short. “Why do you ask?”
“They say on my world that the Force sometimes runs strong in certain families.”
So much of the lore of the Jedi had been lost— but on Gatalenta, the old religion had remained strong. History had become legend, but some of the legends were still told. Gatalenta had been one of Luke’s first destinations when he began his research into the Jedi Knights of old. Tai-Lin continued, “If that is true, then you might have the potential, just like your brother.”
And my son, she thought but did not say.
“If you have that ability, then I cannot imagine why you would not become a Jedi as well,” Tai-Lin finished. “Surely I’ve known few people who would make a finer make a finer Jedi Knight than you.”
Leia inclined her head in gratitude for the compliment, but she could not answer right away, because she could not tell the full truth1. The Force was too important a subject to be shared lightly, even with Tai-Lin, her ally and friend. Her safe, sensible, and, as far as it went, honest reply: “My duty has always been here, in the work of creating a new and better government.”
- Star Wars: Bloodline
...
She swore to [Luke] that she just doesn’t have it. It being that mystical, intangible power that her brother possesses and (this thought comes with a set of chills grappling up her spine) that her father— her birth father— possessed, too.
- Star Wars: Aftermath: Life Debt
...
Luke said those strong instincts of hers served as proof of the Force, evidence that it was working through her all the time. Maybe he was right. But Leia believed just as much in her experience and her common sense.
- Star Wars: Bloodline
...
...Luke Skywalker, too, but this detail was nearly irrelevant to Lady Carise. Skywalker had been so long away on his strange quest for the lore of the Jedi that he no longer had much influence outside his own acolytes. He was a figure of myth more than one of flesh and blood...
"Princess Leia spoke of her brother, the famous Luke Skywalker, who has been little seen in the public sphere for many years now."...
“Since the Rebellion, Skywalker has lived a private life. He has asked no more of the New Republic than any of its other citizens, nor have we just cause to ask more of him than the substantial service he has already given."
- Star Wars: Bloodline
...
“That tracks. Two heroes of the Battle of Endor, and I haven’t seen Solo around here in months. Skywalker for even longer.”
- Star Wars: Aftermath: Life Debt
Assim, Leia optou por não treinar como Jedi porque:
-
Ela não estava convencida de que poderia ser um Jedi, e duvidava de seu potencial de força
-
Ela não tinha certeza se deveria ser um Jedi, porque Vader era seu pai 2
-
Ela sentiu que era mais adequada para um papel de liderança política e, como tal, tornou-se senadora da Nova República
-
Luke desapareceu logo após a Batalha de Endor para encontrar artefatos e locais antigos de Jedi. Ele retornou brevemente para levar Ben Solo como estudante, depois saiu novamente para treinar seus filhotes. Depois que Ben virou-se para o Lado Negro e matou os outros filhotes, Luke se escondeu em Ahch-To, e sua localização não foi revelada até o fim de The Force Awakens .
Notas:
1 i.e., que Vader era o pai dela e isso a fez desconfiar de se tornar um Jedi por alguma razão
2 Ela nunca explicitamente explica por que ela não aplica esse raciocínio a Luke, já que Luke também é filho de Vader, mas pode ter algo a ver com o fato de que Luke, ao contrário Leia, testemunhou a redenção de Vader em primeira mão:
As always when Leia thought about this, she called upon what Luke had told her of their father’s last hours. He had renounced darkness, saved Luke, and become Anakin Skywalker again. Whenever Luke told the story, a beatific smile lit up his face; his memories of that event gave him a level of comfort and even joy that sustained him. Those were memories Leia couldn’t share...
Whenever she’d talked with Luke about their birth father, this was the part where he’d refuse to use the name Darth Vader. He was Anakin Skywalker when he fell in love with our mother, Luke would say, taking her hand gently in his. And he became Anakin Skywalker again in the last hour of his life. He came back from the dark side, Leia. They said it could never be done, but our father did it. He made that journey because of his love for us.
Leia believed Luke. She could feel that truth within him. But it was difficult for her to find solace in this the way Luke did. How could Vader torture her without mercy if he had that good inside? He’d still had the power to make the right choice, but had instead forced her to suffer...
Think of your conversation with Casterfo as practice, she told herself. One day she would have to reveal all this to her son. The truth of Vader’s identity had shattered her; she could not imagine what it might mean to Ben. At least Luke could tell Ben the most important part— that Vader had, in the end, been redeemed. Anakin Skywalker had returned; the dark side had been defeated by the light.
Leia knew this. She believed it. But she still did not understand it.
- Star Wars: Bloodline