Being trained from a young age would have gotten Luke killed. The problem is that Sidious knows how to push the buttons of Clone Wars era Jedi very well and training from such a young age would have made Luke into a Clone Wars era Jedi. If Sidious could defeat Windu, he could defeat Luke. Considering this, what happens if Luke completed his training?
Luke would have completed his training, and would most likely have learned who his father and sister were during it. And in Jedi, Yoda says Luke learned before he was ready, which implies that Yoda would have told him if necessary. Luke would still have his father's lightsaber and his right hand.
Also, what happens if Obi Wan trained Luke? So, even if Luke did receive training from Obi-Wan, it likely wouldn't have been extensive. Luke would have fought better in the Death Star, but even combined, older Obi-Wan and Luke likely wouldn't have been able to defeat Vader, and Vader would still strike down Obi-Wan.
Regarding this, what if Anakin trained Luke and Leia?
Anakin would have trained them, more then likely outside of the order so he could be with them. They wouldn't be Jedi but they would be force users. Anakin would probably leave the order to be with his family. They would move back to Naboo and live in the country side where he would teach them the ways of the force.
What would have happened if Anakin never trained?
Anakin was too emotional. If they did train the apparent chosen one, he could become powerful enough to defeat them if he ever fell to the dark side. But if they didn't train the boy, he was at a greater risk of falling to the dark side. Either way, it was a lose-lose situation.
Related Question Answers
What would happen if Luke didn't go to Bespin?
So, if Luke had just stayed on Dagobah, R2-D2 would not had been here to help everybody escape from Cloud City. In Luke's force vision he saw bad outcomes for both Han and Leia. By going to Cloud City he changed that vision, because Leia was ultimately able to escape with the help of Lando. What if Luke never left Tatooine?
Not that many people have heard of it since most planets are demolished once it appears. So with no indication that the droids or Luke left Tatooine, the storm troopers continue their search. Eventually they find Luke and he is killed like his Aunt and Uncle were. And then Luke woke up. What would have happened if Luke stayed with Yoda?
If Luke had stayed with Yoda, perhaps the princess and Chewbacca would have saved Han in time. Luke also learns that Darth Vader is his father which Obi Wan and Yoda were trying to keep secret from him. This knowledge nearly prevents him from confronting Darth Vader later. How long did Yoda train Luke?
So all we can say for sure is that Luke's training time with Yoda could have been anything between about 30+ minutes (i.e. the amount of time it takes on screen) and six months. Luke wasn't trained in the conventional way, which took years of training and trials. Luke was eager, he felt a strong urge to become a Jedi. What if Obi Wan survived?
Unfortunately, even if Obi-Wan survived the battle with Vader in A New Hopeeventually his former Padawan would fell him. And yet by surviving he would gain so much time. Time in which to train Luke, to live, to love, and to become the father that Luke felt he never had. How did Luke and Leia get separated?
Luke was given to Owen Lars and his wife Beru on Tattoine, while Leia was given to Bail and Breha Organa on Alderaan. The twins were separated because having two individuals with such a high Force emanation together might be more easily noticed by the Emperor. Separating them allowed them greater safety. Why does Yoda not want to train Luke?
Yoda thought of Luke as “that other Skywalker.” He named Luke's impatience and anger as terrible weaknesses. He called him reckless and as angry as Anakin. He only decided to train Luke at the insistence of Force ghost Obi-Wan–kind of like Qui-Gon insisting that Obi-Wan train Anakin. How old is Yoda when Luke meets?
about 900 years old
Did Leia forgive Vader?
Has Leia 'forgiven' Anakin Skywalker for his crimes as Vader? Yes, in the “Legends” part, she even named her third child for him, as a symbol of his heritage and redemption. However, it's more than acceptance that Anakin is her BIOLOGICAL father and she got her personality and Force sensitivity from him. What would happen if Anakin didn't turn to the dark side?
Anakin doesn't convert to the Dark Side This time, Anakin refuses Palpatine's offer to join the Dark Side, and a duel would come through. The duel would be long, but eventually Palpatine would fall. This is Anakin at his full potential, by the way. Now, there is no Death Star. What if Leia turned to the dark side?
Originally Answered: What if Vader turned Leia to the dark side? Then Vader and Leia together would try to overthrow Palpatine. They fail, and Palpatine kills one of them, while keeping the other one enslaved. Then Luke comes, redeems the survivor, and together they overthrow Palpatine. Did Leia ever meet Anakin?
In Bloodlines Leia officially learns of Padme and Anakin 6 years prior to TFA. Obviously she already knew about Anakin but didn't really care about him at all due to him being Vader. Even by the end Leia still hasn't really warmed up to Vader being her father, and. Which promptly forces her to resign in shame. What would happen if Anakin liked sand?
Anakin Skywalker doesn't hate sand in the sense that the sight of it upsets/scares him. He dislikes living in an encironment that contains a lot of sand, because it is unpleasant compared to what he has become accustomed to. Anakin Skywalker doesn't hate sand in the sense that the sight of it upsets/scares him. What if Darth Vader raised Luke and Leia?
They would be raised by Vader to become new Sith Lords. He would want to use them to overthrow the Emperor, and the Emperor would try to influence them to turn against Vader and become his new apprentice. The Rebellion would continue on without the help of Leia. Who trained Obi Wan?
Qui-Gon
Why did Obi Wan separate Luke and Leia?
Luke was given to Owen Lars and his wife Beru on Tattoine, while Leia was given to Bail and Breha Organa on Alderaan. The twins were separated because having two individuals with such a high Force emanation together might be more easily noticed by the Emperor. What if Anakin stayed on the light side?
I first thought that if Anakin had not fallen to the Dark Side, and in turn had he not become Darth Vader, then it is likely that Supreme Chancellor Palpatine would have, just the same, become Emperor after he would have ordered the clone troopers to kill the Jedi. Why didnt Obi Wan raise Luke?
If it were, he would have taken him himself. Jedi turn out best when they're raised as Jedi from infancy. Obi Wan didnt want Luke to be a Jedi. He wanted him to be a moisture farmer on Tatooine or a pilot or whatever else Luke wanted to be. Why did Leia stop her Jedi training?
Why Leia Gave Up Jedi Training In any case, Leia decided to stop her training before taking on the duties of a Jedi because she sensed that it would not end well. She felt that Ben Solo would die if she continued her Jedi training. What if Ahsoka raised Luke?
Ahsoka would have raised Luke like he was her little brother, not like she was a Jedi Master and Luke her apprentice. This means she wouldn't know until Vader told Luke on Bespin and they both would have been emotionally demolished by it. Why was Anakin too old?
During the time of the prequels, Anakin was originally considered too old by the Jedi Council because they had decided to start training kids when they were infants, so they would have no meaningful connections with anyone that wasn't a Jedi. Why did Yoda train Luke?
To Yoda, Luke was the first “there is another.” He wanted to train Leia to use the Force and become a Jedi. He only decided to train Luke at the insistence of Force ghost Obi-Wan–kind of like Qui-Gon insisting that Obi-Wan train Anakin. Did Obi Wan watch over Luke?
Obi-Wan also lived near them and watched over Luke. Because Luke had force powers and is a light-side character he naturally helped other people. Luke usually watched out for him because he felt he had to protect him although Uncle Owen didn't want anything to do with the forc in general. How did Qui Gon find Anakin?
Anakin Skywalker. Discovered as a slave on Tatooine by Qui-Gon Jinn and Obi-Wan Kenobi, Anakin Skywalker had the potential to become one of the most powerful Jedi ever, and was believed by some to be the prophesied Chosen One who would bring balance to the Force. What if Anakin and Padme never fell in love?
If Anakin had never fell in love with Padmé, he would've never turned to the Dark Side because it was his fear for losing Padmé and his two unborn children which caused him to be easily seduced by the Dark Side of the Force. It was his fear which made it much easier for Palpatine to manipulate Anakin. What would happen if Qui Gon didn't die?
In the end, Anakin turns to the dark side and duels Obi-Wan on Mustafar. But he could not have stopped the rise of Darth Vader unless Qui Gon defied all logic (and the will of the force) and got rid of Palpatine early. Also, even if he didn't die on Naboo, Qui Gon would have probably died somewhere in the Clone Wars. What if Palpatine found Anakin first?
If Anakin was found by Sidious (then Palpatine) on Tatooine, then he would likely have been trained by Sidious after the death of Maul. He would most likely be kept in the shadows during the Clone Wars, until Order 66. Dooku would be eliminated by Anakin at some point during the Clone Wars. What if Anakin lost the Podrace?
If Anakin lost his podrace,he wouldn't have won the spaceship parts Qui-Gon needed to repair the ship and he wouldn't have won his freedom and Qui-Gon wouldn't have taken him to train to be a Jedi, and if Anakin didn't become a Jedi then he would have still been a slave in Tatooine. What would have happened if Anakin stayed on mortis?
Anakin chose to stay behind on Mortis, leaving his life as a Jedi behind. Whatever life he had back in the known galaxy would now be left behind and he would look forward to whatever he needed to accomplish here. 
