I am a man. Can you just wear a suit and no clothes when you go out?

Generally speaking, according to the traditional dress concept and habit, wearing a suit and tie has become a routine. Of course, in more formal occasions, wearing a suit, shirt and tie is more in line with the atmosphere of the occasion, and it is also a respect for the people around you. If you have to wear a suit with bare arms, that's your freedom, but people around you will think you are different.