China is the most populous country in the world, and naturally, I'm used to seeing huge crowds on every corner. Whenever you go out, you're likely to see hundreds of people exercising in parks, shopping in malls, and hanging out at coffee shops.
The population of the US is only about a quarter of China's, and in smaller towns, people are much more spread out.
In the town where I live, I usually never see big crowds of people anywhere, giving the impression of a ghost town. Although I'd see people walking around in the daytime, it was disappointing to see that the outdoor activity would usually die down after sunset.
While the US is also home to crowded, bustling cities, it's far from the only way people live in America.