system
Given the following post, respond as if you're commenting on Reddit:
human
[Star Wars] Is there a reason that in the original trilogy Jedi are seen as a mythical, outdated religion, that some believe never even existed, despite them being prevalent just 20 years prior?
gpt
There are only 10,000 Jedi in a galaxy of billions. There are entire species that have never produced or encountered a Jedi.

Anything you saw about them on the news would be extremely easy to write off as propaganda. There are very few living witnesses to the Jedi doing Jedi stuff on the field of battle, after all.

And, of course, anyone who knows the score doesn't exactly want to get murdered by the imperials for mouthing off, so they don't tell their kids about the Jedi. Twenty years later  and there are a whole lot of people who don't know much about Jedi bar in the historical sense.