In which professions do men have to wear formal attire to work? (For example: suit, tie, white shirt, black shoes)

1. White-collar workers (in general companies, people who sit in offices in office buildings)

2. National civil servants (same as 5)

3. University teachers (lecturers, professors, etc.)

4. More formal state and private middle school teachers

5. Government workers (same as 2)

6. Recruitment personnel (staff in job fairs and job fairs)

7. Car sales personnel (for example: salespersons and sales managers at the Volkswagen 4S store in Volkswagen Automobile City, Jiading District, Shanghai)

That’s about it. In short, it is a relatively well-behaved and fastidious unit, whether it is a public institution or an enterprise. In small companies and factories with just a few people, there is no need to wear "formal clothes" (suits, ties, white shirts, black leather shoes). In such units, men dress more casually.

I recommend you take a look at Professor Jin Zhengkun’s business etiquette course, /v_show/id_XMTU0MDA1NjEy.html

You can also buy a business etiquette book and read it yourself.

I hope my answer is helpful to you. Also, if you are applying for a job after graduating from college, it is best to wear formal attire.