I know a couple who is moving to Europe. They just got their large dog certified as a support animal - I suppose they have a doctor friend or something. This is not a support animal. The couple travels about two weeks each month and boards the dog while they’re traveling.They did buy the dog a first-class ticket. The dog is a sweetie, but still I wouldn’t like to be in the first-class cabin with the dog for 10 hours.
While I think this whole “support animal” business is a hoax.
Some dogs are cleaner, safer and better behaved than some people.