Let's take a look at the fact that all States in the United States have abolished the "mask order." Now their people basically don't wear masks when they go out, but it will be strange to wear masks there. In the United States, people basically don't wear masks when watching various large-scale competitions and concerts. Wearing a mask in the United States means that freedom is restricted, while Americans yearn for freedom and don't like the feeling of being bound.
The Transportation Security Administration of the United States announced that it is no longer mandatory to wear masks in public transport, that is to say, when taking public transport such as subways, planes, trains and buses, you can no longer wear masks, marking the end of the era when the United States implemented masks for nearly two years.
When Gu Ailing returned to the United States this time, it can be said that she did as the Romans do, because the United States has lifted the mask order, and everyone basically does not wear masks when going out. If Gu Ailing wears a mask alone, she will look out of place.
Besides, the United States says it is universal immunity and there are specific drugs. The characteristics of COVID-19 are already very clear to everyone. They think that COVID-19 is not a very serious virus, so it is treated as an ordinary influenza virus.
It's written at the end, but our country is different from America. We regard everyone's life as very important, regardless of age. Most of the deaths in COVID-19 are elderly people, and the United States does not attach importance to the elderly, which may just eliminate a wave of people who receive social welfare.