These uncles also need to consider other people's ideas. It is their freedom to wear coats in their own homes, but when they are outside, they are in public areas, so they should pay attention to their words and deeds. Because everyone has different ideas, some people think nudity is nothing, but some people think it is immoral, so when you are in public areas, you still need to consider the ideas of most people.
Being topless doesn't show masculinity. Such behavior is only uncomfortable and vulgar, and there is no sense of masculinity. So these topless people still need to regulate their behavior in public areas. If they feel hot, they can wear vests, which are not naked to some extent. After all, we are people in society, so we need to take into account the feelings of others in society, for social harmony and for our own image.
We will find that young people are less likely to go out topless, on the one hand because of shyness, and on the other hand because of their own life experience and knowledge. In the social environment where they live, few people will walk around with bare arms, and their education also tells them that topless in public places is not elegant.