How connected is Heather with the world?

Much, much to consider following Heather Mills' extraordinary performance on the steps of the court, but perhaps the place where we shall place the tape measure to see the gap between her world and the one the rest of us live in is her reaction to the thirty-odd grand a year she'll be getting in return for providing bed and board for Beatrice:

“Beatrice gets £35,000 a year. She is meant to travel B-class when her father travels A-class."

Aside from the suggestion that a kid is going to suffer with an income that's above the UK average for, you know, a grown up who does a job, it's interesting that Heather is so used to traveling up the front of the plane she doesn't know what 'first class' and 'second class' (or, perhaps, coach or standard) are actually called.