Interestingly, most of them had built up a lot of preconceived notions about the United States from social media sites like Reddit. Many of those sites project an extremely pessimistic and negative view of the United States, either directly by complaining with hyperbole ("third world country with cell phones") or by simply emphasizing every negative story about the United States.
I have to admit, one of my guilty pleasures was watching people slowly realize that the United States, while not without problems, is actually not a bad place. This comment hit home:
> I know that the US has some of the highest obesity rates in the world, but from what I’ve personally seen, it doesn’t seem that way at all. The people that I see day to day are generally extremely fit. (Or is it just students?)
We talk a lot about America's obesity problems online. So much so that people assume America must be one of the most obese countries by a wide margin. However, when you look at the numbers the United States is only a couple percentage points worse than countries like New Zealand or Canada which have no such reputation ( https://en.wikipedia.org/wiki/List_of_countries_by_obesity_r... ).
Don't get me wrong: Obesity is still a problem and the United States is incrementally worse than most countries. However, the way it's talked about leads a lot of people to believe that the United States is some sort of extreme outlier and nearly everyone they encounter will be obese.
Obesity is just one example of how the internet, especially sites like Reddit, tend to exaggerate the problems of the United States while downplaying the positives of the country. It was always kind of fun to watch visitors and transplants slowly realize that the country, while far from perfect, was actually nowhere near as bad as the dystopia they read about on sites like Reddit.