So surprised

The article "Foreigners share what they find most surprising about America" summarizes answers of people who've come to America and made paradigm-bursting discoveries:

• "Foreigners cannot believe how vast the United States is. . . my Italian relatives come here thinking they can visit me in Seattle, plus also see New York City, Miami, the Grand Canyon and Hollywood all in a week--by car."
• "Food portion sizes which are ridiculous to my view. "
• "The typical supermarket has at least a hundred varieties of frozen pizza, 50 brands of trail mix, etc. I was just astounded by the different kinds of products available even at small gas station convenience stores." 
• “I was aghast at the amount of stuff people wasted every single day."
• "None of my friends back in India believed me when I told them that you can literally buy anything, including food, and return it within ninety days for a full refund "
• "Nicest people in the world, even in New York which is supposed to be one of the rudest cities in the world."