I was mainly replying to them saying that there is animosity towards disabled people ("people question why they needed a chair. They had people call them wheels in public..."). I haven't heard or seen it verbalized explicitly, with that one exception of airports, where people publicly mumble and mention it. I don't like to see it and I don't support that but that's what people do.

> A trivial example would be someone who can walk from the airport to a car when unburdened, but cannot stand in line for an hour while carrying luggage.

Of course. And not all disabilities are visible, either. It's better to have a few cheaters to abuse the system and provide more accommodation to people who need it than go the other way. But the way people are, even if they witness a small minority cheating, they'll start forming an opinion. As a rule, especially as far as I have seen, traveling and living with disabled people needing a wheelchair, most people are willing to help and are accommodating.