hairy_hen said:

I never remotely thought of the Jedi as being constrained against relationships, which was one of my biggest complaints about AotC and a major factor in turning me against the prequels.

It seemed natural to me. They're space-monks. In the OT the two Jedi we meet are hermits Even as a lad I figured the reason Vader didn't know he had twins was because there was something shady about their parentage.

Given that the dark side feeds on emotion and how Zen and monklike Lukers was in ROTJ living an ascetic lifestyle seemed appropriate.