Japan may be seen as a country full of nice people, but sometimes they’re just nice to you because you’re judging and expecting them to behave respectfully. This is especially true in bigger prefectures like Tokyo, Osaka, and Shibuya. The moment they have some anonymity in a crowd, they may show their true identities.
Please note that this is behavior seen in some of the most crowded streets in Japan’s bigger cities, and does not reflect all of Japan.
The below videos demonstrate this behavior in a way that’s unimaginable for many Americans, and perhaps people of other nationalities as well (please feel free to comment with your insights). Even Japanese commenters are lambasting the display, pointing out that those in the big cities as especially awful, and that this rarely happens elsewhere.