That definitely seems the wrong way around. Being a Jedi isn't something you used to do before you took up adventuring.
I used to be a Jedi adventurer, but then I took an arrow to the knee xD
Okay I'm sorry. I know, 2011 just called and they want their meme back lol.
In all seriousness, a Jedi IS an adventurer. I quote directly from Star Wars Saga Core rulebook:
"A Jedi typically starts out as a Padawan learner attached to a Jedi Master. Prior to 1st level, the character trained as a student with the Jedi Council. She begins her heroic career at 1st level when she is selected as a Padawan learner. Jedi have a genuine desire to use the Force to help the people of the galaxy."
The term "heroic career" is basically synonymous with adventurer. Jedi roam the galaxy, fighting evil and protecting the helpless and innocent. At 1st level, they are a Padawan learner but still a Jedi nonetheless. What this tells me (IMO) is two things:
1. Jedi is a class. It represents not just learning how to use lightsabers and wield the Force, but learning their peaceful philosophies and way of life.
2. Jedi Youngling is definitely a viable background. You were taken in as a child and taught the ways of the Jedi. That perfectly explains how you became a Jedi.
Now, HOW to represent this in-game is what I'm debating. Some have suggested that I keep Jedi as one class and split the subclasses into Consular/Guardian/Sentinel. That certainly makes a lot of sense. Others are suggesting that I make just a basic "Force-User" class and make Jedi/Sith/Force Adept as their own sub-class. That too makes sense. Basically I'll try both and see how it goes.