system
Given the following post, respond as if you're commenting on Reddit:
human
[Star Wars] Why Ben Kenobi?

Was there ever a reason given for why Obiwan Kenobi was living under the name Old Ben in A New Hope?  Why choose that particular name?  Obviously it's got some significance, or else Luke wouldn't call him Ben all the time, and Han and Leia wouldn't have named their first born son Ben in his honor.
gpt
When he went on the lam and ended up on Tattoine, he probably chose it to be anonymous.  It was probably just a random choice.

Most people probably had no idea of his real name, Luke included. 

And why wouldnt Han and Leia name their son "Ben" in his honor?