Some airline passengers question whether animals should be allowed to fly in cabins. Facebook comments edited for clarity and grammar:

Planes are simply too confined. If you have unique travel requirements, such as a service animal, pet or toddler who you know will have a tantrum, then take another means of transportation.

—Rosbo Octavia Principia Quint

Gizmo, PD and Jelly Bean (L to R) – Jelly Bean says that she is so happy that her MOM found Hound’z Of Hollywood and is taking such good care of her family and don’t we look fabulous!!!

Every opportunity should be taken to accommodate folks who need actual service animals. However, other animal owners who simply can’t go an entire vacation without their pets do not deserve the same consideration. People, and especially children with allergies, are more important than dogs.

—Mark Norris

I fly with my dog and haven’t experienced this negative backlash. Many people tell me they find it comforting to see a pet on board, especially those who are nervous to fly.

I think if the owner is responsible and takes care of the animal, there shouldn’t be issues.

—Shannon Mustang

I would pay extra for a child-free flight. I am sick of people being able to bring their ill-mannered children anywhere they want, but God forbid I bring my well-mannered small dog.

—Josephine Arwood

I’ve brought two cats with me on overseas flights at separate times. The only problem was with a passenger who claimed to be allergic. The flight attendant assured me it was the other passenger who would have to change flights.

—Mara Alexander

USA TODAY 12:33 a.m. EDT August 5, 2015