To reiterate and probably beat a few dead horses here, this is NOT a call for you all to submit your character backgrounds to an approval system.
Just make sure your story makes sense. Can you realistically be a trooper or pilot AND be the ruler of an entire sector with a fleet under your command? Well, no. You'd be escorting ambassadors when supposed to be on patrol. Plus, we'd probably not let you serve even if an ally of the VE. Would be a huge conflict of interest.
If you are on the lam from a higher power, wrongly accused of something and/or trying to redeem yourself and reclaim a throne; that's one thing.
Mostly though, it's okay to be the child of moisture farmers, or a mechanic, or someone who got all patriotic, then drunk, then in a uniform with no clue how it all happened. Not everyone is a prince, and not everyone is from Corellia.
I am ALL for solid character development and backstory. I'm currently boring the hell out of some of you bumping up my character and you're only reading in case I drop a huge nugget of plot development in there somewhere. So thank you. And I'm sorry.
But keep it realistic, given that we're playing in a science fiction sandbox and all. I love that a lot of work has gone into some of the background some of you have done. But let's look at it from another angle.
You are in a military unit in space firing lasers or learning to use the Force, choking people from across the room and slicing limbs off with a plasma sword. That's pretty severe in its own right. No need to be royalty on top of it unless you really want to enhance that honorific with a story.
Not a title, but a story. Are you seeking vengeance against those who hurt/maimed/killed your parent/sibling/dog/bantha/droid? Are you just seeking adventure? A way to pay off a loan shark, find enough scratch to buy your own stead or business? THAT is the story. How you got here is more important than the things you own.
Just my two credits. Feel free to jump in the discussion.