This thread is for people to talk about fan theories they like, whether they're plausible, debatable or completely off the rails.
Obi-Wan is shown in the original Star Wars trilogy to be ruthless and manipulative in pursuit of "the greater good". When he first tries to get Luke to join him in rescuing Princess Leia and Luke refuses, Obi-Wan gives a very passive-aggressive "You must do what you feel is right, of course."
Later, when they find the destroyed sandcrawler, Obi-Wan tries to stop Luke from going to check on his family, saying it was too dangerous.
In "The Empire Strikes Back", Luke shows that even a relatively untrained and inexperienced Force user could transmit a telepathic message across vast distances, at least upon the same planet.
SO...what if Obi-Wan actually used his Force powers to give the stormtroopers a nudge toward Luke's farmstead, cutting off all his connections to his old life (as would have been expected if Luke had been able to undergo traditional training at the Jedi Temple, though hopefully without the murder) and leaving him little choice but to go with Obi-Wan?