Sent my daughter (18) alone on a TATL flight. Picked an aisle seat closer forward - had to hunt for it since ticket was bought close in. Turns out, "a couple asked her to swap" and she ended up in the middle seat elsewhere, too afraid to refuse. Hate "couples" like that. Too cheap to pay and too lazy to work for a good seat, but def. not above taking advantage of someone else. Had to vent, thank you all for listening.