To think that changing a child's nappy on an airline seat is antisocial?

sorry wriggly finger , meant poo

from the poi think but not the wee

Can't you catch polio from a babies nappy for several weeks after it's been vaccinated?

I always changed mine on my knee , but not usually in public , but better than the table

Not at all acceptable especially when there are facilities in the toilets.
You are not being old fashioned.

If she had used a changing mat would that have been more acceptable ?

Totally wrong.
Some years ago I was treated by DD1 to a wine tasting lunch at Puligny Montrachet. It was informal but quite 'posh'. It was a small restaurant and the only other diners were a 40 something couple with a baby. The mother lay the baby on the table and proceeded to deal with its nappy. The Maitre D didn't blink an eyelid. I was horrified. It quite put me off my grub

Anti social, unhygienic and totally unacceptable!

Sorry, should have also said that I think it is totally unacceptable.

I read an article in the paper a while ago about mums who change their babies' nappies (not just wet ones!) in front of other people in cafes - when there are perfectly good facilities in the ladies toilets.

It's their rights, innit Stansgran

Not at all old-fashioned and judgemental, she was totally out of order.
Aeroplane loos have facilities for nappy changing, admittedly a bit cramped but if I can manage it with a wriggling 10 month old.....
I'm surprised the air steward didn't notice and say something.