Charlie
Charlie was a good girl. Good grades, good friends, and uninterested in boys. She was always sensible and rarely dabbled in anything that would upset authority. When she did, (no one is perfect) she was quick to apologize. She was in no way the sort of girl to be unwound.
It was much of a different story for her sister. Charlie was ashamed that she had such a sister as Lauren. But it wasn't much matter because Lauren wasn't her real sister. She was a dirty stork who, frankly, should have never been born.
Apparently, Charlie was not the only one with such thoughts. Her parents had signed the unwind order a week ago, and good riddance. Lauren was a disgrace to the family, with her drugs and vandalism. Not to mention her greasy drum-playing boyfriend who she was constantly tongue-kissing while poor Charlie lay witness.
Why couldn't Lauren be like Charlie? Why couldn't she just fallow the rules? She could be better than this, Charlie knew that. But she chose not to be, and that is what disgusted Charlie the most.
So Lauren will be unwound, and Charlie will finally be able to rest at night knowing that her parents did the right thing. It's better this way, Lauren will save lives this way, instead of ruining them like she's done all her life. Yes, this is the logical thing to do.
Someone so unwanted is better off divided and made useful... right?