Thanks for a very nicely written trip report. The Cessna Caravan flights looked amazing. I'd like to experience that some day as well.
Originally Posted by
Percy Pig
Introduction I took Champagne, my wife took bucks fizz. The champagne was a Heidsieck Monopole, which is perfectly drinkable, especially at 9am. It was served in plastic cups. There is probably some safety reason for this, but it did seem a little odd.

Surely no safety regulation beyond that

More of a custom of US carriers to ruin your pre departure champagne moment by not serving your drink in a real glass