While Shmi entered Owen's life during the latter's early adulthood, she quickly became a beloved family member to him and his then-girlfriend Beru Whitesun. Owen and Beru removed Shmi's gravestone by the time they adopted Luke, so allowing him to keep the Skywalker surname was another way of honoring the late Shmi.
Though Luke's surname was "Skywalker" in Lucas's 1973 treatment of The Star Wars, it was changed to "Starkiller" in subsequent drafts, at one point featuring in the title (The Star Wars: From the Adventures of Luke Starkiller).
In hindsight, Luke had the luxury of carrying his father's real last name because he was a nobody hidden in the Outer Rim Territories. Leia, on the other, was adopted into a well-known and prominent family, hence why she was given the name Organa.
A New Hope made it clear that Obi-Wan "Ben" Kenobi did not want to draw much attention to himself, but it is likely that George Lucas still did not have the full picture of why exactly that was the case, much less that there were Jedi hunters known as the Inquisitors searching for the Jedi Master.
We all have last names, Luke just descended from a line of Skywalkers. Anakin Skywalker, Shmi Skywalker, etc. And no, he can not in fact fly just because his name is Skywalker.
Why Obi-Wan DIDN'T Change Luke's Last Name - Star Wars Explained
Why didn't Owen change Luke's name?
While Shmi entered Owen's life during the latter's early adulthood, she quickly became a beloved family member to him and his then-girlfriend Beru Whitesun. Owen and Beru removed Shmi's gravestone by the time they adopted Luke, so allowing him to keep the Skywalker surname was another way of honoring the late Shmi.
In Star Wars, younglings were traditionally recruited into the Jedi Order from an early age — so young that 9-year-old Anakin Skywalker faced opposition as being too old to train. However, during the original trilogy, Yoda and Obi-Wan Kenobi resolved to train a 19-year-old Luke Skywalker.
Luke simply wouldn't be the hero he is without Uncle Owen and Aunt Beru. Owen Lars and Beru Whitesun met in Anchorhead. The Tatooine natives both came from generations of moisture farmers in their families.
Did any of you notice that Leia has three last names? Well, probably. If you didn't, here's her three last names: Skywalker (her real last name), Organa (the last name that Bail Organa and his wife pretended was Leia's last name) and Solo, The last name she got after she married Han Solo.
It's during this experience that Obi-Wan really makes an impact on Leia's life. So, even when she eventually learns his real name, Leia always associated the Jedi Master with Ben rather than Obi-Wan. Inspired by this, it makes sense that she decided to name her son Ben Solo — after Ben Kenobi.
Din Djarin has been teaching Grogu how to navigate the galaxy, and Grogu could honor his father by becoming a bounty hunter in the future. Grogu does not have to be the new Mand'alor or a Jedi Master. Instead, Din Grogu could make his own through the galaxy, perhaps assisting the New Republic as a bounty hunter.
In this comic issue, Darth Vader is informed by Boba Fett that the Rebel pilot who destroyed the battle station (and briefly battled Vader on Cymoon 1 in issue 2) is named Luke Skywalker, who Vader immediately recognizes as his son.
Anakin and Luke's original surname "Starkiller" remained in the script until a few months into filming Star Wars, when it was dropped due to what Lucas called "unpleasant connotations" with Charles Manson and replaced with "Skywalker".
The Jedi however also have three outliers in that of Luke, Leia, and Cade Skywalker (23000/23000/21000 midi-chlorians respectively) all of which were children/descendants of Anakin Skywalker (the chosen one) and so genetically predisposed to having abnormally-high midi-chlorian counts for Jedi.
Duleep Vasudevan, Tom Griffiths, Mark Phillips and Katie Herlingshaw from the Department of Physics and Astronomy at the University of Leicester have worked out that in the film Star Wars Episode V: The Empire Strikes Back, Luke and Leia do not actually remain the same age due to relative velocity time dilation - ...
Princess of Alderaan. The royal couple of Alderaan adopted the late Padmé Amidala's infant daughter, renaming her Leia Organa. Through adoption, Leia Amidala Skywalker became Leia Organa, formally becoming heiress of the Royal Family of Alderaan through the Name Day ceremony.
The name Owen is of Welsh and Celtic origin. When derived from the Welsh naming, Owen is spelled Owain and pronounced OH-ween. The Irish form of the name is Eoghan, pronounced O-wen or YO-wen. The name Owen dates back to the Renaissance era when it was primarily used as a Welsh surname.
Owen was the perceived brother of Jedi Master Obi-Wan Kenobi seen through a vision from the Force. In reality, Kenobi was actually seeing Owen Lars, Anakin Skywalker's stepbrother.
Owen Lars first appeared in the 1977 film Star Wars: Episode IV A New Hope, which was written and directed by George Lucas. In A New Hope, Lars was portrayed by Phil Brown and credited as "Uncle Owen".
Yoda chose not to train Luke in lightsaber combat to teach him that being a hero and aggressive warrior are not the core values of a Jedi. Luke Skywalker's actions in The Last Jedi show that he took Yoda's lesson to heart by prioritizing the use of the Force over focusing heavily on lightsaber training.
The realistic answer seems to be, yes, Anakin in his prime could have defeated Luke Skywalker (in the current canon) if they battled one-on-one. The main reason behind this is Luke's lack of formal Jedi training, at least when it comes to combat.
The base assumption of why Obi-Wan doesn't remember R2-D2 -- in light of the prequels -- is that Obi-Wan is feigning ignorance in A New Hope to downplay the importance of the droid's arrival.
