TV’s Frink said:
Of course it’s contrived in 1980.
No, it is not.
In ANH, Vader just happens to chase Leia to the planet where his son and her brother lives…
Leia was not Luke’s sister in 1980.
and he just happens to take possession of his sister’s droids…
See above.
one of which just happens to be carrying the stolen plans his father is trying to retrieve?
Yes. According to the original storyline (forget the prequel sh!t), Obi Wan took Luke to Tatooine to live with his brother, Owen Lars. Obi Wan remained on Tatooine and lived nearby, often checking in on Luke as Luke was growing up and oftentimes coming to Luke’s aid when Luke got into trouble.
So, these are the key takeaways from this so far: Obi Wan had a small boy to care for. He logically took the boy to his brother and his wife, so that Luke could have a mother and father figure. Tatooine is a remote, dead, completely unimportant planet that virtually no one knows about and no one cares about. Perfect place for Obi Wan to go into hiding. And the perfect remote, hidden, unknown place for Luke to grow up.
Leia programmed R2 to deliver the plans to Obi Wan. She gave R2 the rough coordinates to Obi Wan’s home. R2 was on his way to deliver the plans directly to Obi Wan when he was caught by Jawas, who then sold R2 to Owen and Luke, who happened to live right there in the neighborhood.
Perfectly plausible story.
Admittedly, the story gets contrived with ROTJ and then goes to complete sh!t with the prequels.
You aren’t being consistent in your complaints.
As you can see above, I am.