I just think its hysterical thinking of something at the end of the movie.
One twin gets to grow up in the lap of luxury, while the other is dumped on BFE Tatooine to become a moisture farmer And all because Lady Organa wanted a girl..
The Gwen Steffani of the Star Wars Universe would probably be a guy then... so Gwain Steffendoubt, or some such, and he'd be singing the parellel song, "I'm just a boy on this sandy world!"