Would be nice if airlines would make it just as easy to buy some more space for my pet. Pay more to buy the row out, pay more to get on a limited selection of "pet friendly" flights, probably other ideas could work too...
I see people bring crying babies into first class all the time. I would dispute that most people really have an option to avoid "nuisance" contact with other people. (Not an option for me either way, I have never had a first class seat.)
The comfort of other humans is more important than anyone’s selfish desire to drag their pet to each and every place they happen to go.
The OP was not talking about small pets, which are already allowed. They're talking about buying a separate seat for a large dog. It is utterly insane to expect anyone to spend a cross-country flight with an 80lb Labrador next to them slobbering all over them.
if only.