Like referring to morbid obesity which is getting too prevalent in societies across the world. Far too many of the morbid obese do not see themselves as such or refuse too. It should be treated the same as smoking and dogs crapping on planes; that morbidly obese person is more of a risk for your plane than a crapping dog.
Being a dog owner, having been raised with dogs and other animals, I really don't want to see them in restaurants, grocery stores, or my doctors office. Pet stores, fine. On a plane in a carry on under the seat fine, roaming the isles no. The airplane problem is far too many people lie and declare them service dogs, something that to a point is lawful and airlines are loathe to challenge passengers over fear of suits. There should definitely not be service animals other than dogs. Emotional support animals should not be accorded the same treatment as those serving the blind.
A "risk" how? The airlines update their weight statistics, they know how much they're carrying. Are you worried about the chance of them having a heart attack disrupting your flight? In that case you should be more worried about elderly people.
Well, then allow me to cheer you up, because it isn't.
The biggest burden on healthcare systems in the developed world is end-of-life care for people who are physically healthy but mentally unwell - a dementia patient might survive for ten or twenty years, requiring round-the-clock care.
Obese people, being much more likely to die relatively quickly while they're relatively young, represent much less of a burden on those healthcare systems than more healthy people do.
