as for the whole divorced parent thing.....your not going to like my answer...don't get a divorce, but that is another threat entirely...seriously, I don't believe that folks should be putting unattended kids on a plane...regardless of the situation. Hundreds of things out there that we feel kids don't have the physical or mental ability to accomplish and we shouldn't change rules just because Mom and Dad got a divorce, or Grandparents wanted the children for the summer. The airlines allow it, I don't like the policy and wouldn't choose that for my children..to each their own.
Dd13 has flown twice by herself to my SIL's in Ohio (we're in NJ). I didn't question it for a minute. She's responsible and well-behaved. I was not concerned about there being an accident - she is way more likely to be in a car accident than a plane accident, and she rides in cars almost every day. Someone walks her to the gate, someone picks her up from the gate.
She's also been walking to school since the third grade, goes out to lunch and dinner with her gfs, goes shopping with them, and in a few years, will be off to college.
I live in the NYC area - tons of kids are taking public transportation (buses, subways, trains) to school every day. I started taking a bus into NYC when I was 15 with friends. Kids are cabable of much more than many believe, thank goodness, because they're not kids for long.


I did not start flying alone until I was 7 (I went to Texas every summer to spend time with my aunts and grandmother). Like you, I really do not think I was a bother at all (I pretty much burried myself in a book). I know my parents (like yours) were careful to tell me to behave myself. I do wonder if most of the people who are okay with children being alone on flights did it as kids and most of the people who are not did not (and maybe did not even fly at all as children)
, there are no studies (no point to them), there are no lawyers working on the unaccompanied minor issue, there are no suits regarding minors flying alone. 

