As someone who’s been going to the Florida parks for years, I have a few possible explanations. A lot of the rides have either giant seats, or a just a row that allows the guests to choose the seat size. Up until recently, having a wheelchair allowed you to skip the line, until they started retrofitting ride queues to allow wheelchairs. A lot of the after hours events have free food, so for about 100-200 dollars extra it’s an all you can eat buffet.  However, I can safely say that being fat at Disney is most likely a miserable experience. You’re at a disadvantage for getting to rides, or buying merch, or seeing the parades due to being a planet. Walking slow and being unable to walk in small spaces makes it nearly impossible to get to anything in a timely manner.  Also, side note: Disney parks knows that their land whale visitors are starting to negatively impact the park. They’ve mentioned possibly figuring out how to widen sidewalks, and I think they’re starting to try to figure out how to put a smaller cap on attendance. However, they totally understand their fan base, the snacks have gotten larger over the years and they now sell merch of the different park snacks.  Tl,dr; been going to Disney world since I was five. I don’t remember whales being there when I was younger. Parks are now overrun with Úrsula doppelgängers looking for their beetus fix.