I read the script once and it had that scene and I thought it was strange cause I didn’t remember it, but then again I probably watched it a hundred times before a really noticed half of the things Obi-Wan says in the dialogue in his house after he saves Luke from the raiders. So I kinda just shrugged it off.

But it made some things make a whole lot more sense. Like it kinda tied the story together in some ways. Biggs runs off to avoid being drafted into the Empire. Hopes to find the rebellion, but wants to keep that part quite (for obvious reasons).

So then later when Luke meets Biggs with the Rebels and they obviously know each other, I don’t feel as gaslit about how I should know this character. And when they reminisce about their childhood, it makes a lot more sense when you recognize him as one of Luke’s friends from back home.