I struggle to understand the draw to this.
I have a dog. He is a dog and does dog stuff. i have never thought how great it would be for him, me, the traveling public to drag him on a metal tube at 35k feet and 500 mph for hours at a time. Thunder spooks him not sure how turbulence would go.
One of the draws for me traveling is I get a break from having to deal with the dog. But to me a pet is not family and I only have one because it came with the wife so I am probably in the minority.