When I go to markets, pubs, cafes on weekends, I see most pets and their owners behaving well, as in I rarely see any who misbehave.
Also having lived with cats and dogs, I'm still amazed at how good they are at holding. They would hold until they see their 'toilets', even if you tell them that it's OK to wee or poo.
On the other hand, when I get home on a Friday or Saturday night, which involves full 60 mins on the M2 motorway, people on the bus:
- vomit on the bus
- ask bus driver to stop at the former toll plaza to pee
- vape
- singing
- talking loud
- open drinks (as in alcohol)
I feel more comfortable flying with pets, I have more fear from flying JQ to Bali, or seeing babies and children on a plane.