This view is rather one-sided and inappropriate. Subway staff play an important role in ensuring the safety and efficient operation of the subway and providing services to passengers. They have their own responsibilities and professional qualities, and we cannot generalize that their cultural level is average. Moreover, friendly and polite communication with subway staff helps to create a good travel atmosphere, and when you encounter problems, you can get help and support more smoothly. If you really don't want to communicate too much, you can stay focused on your own things when taking the subway, such as looking at your mobile phone, reading books, etc., reduce eye contact, and respond politely when the staff takes the initiative to ask or provide help. There is no need to deliberately avoid communication, just treat it with a calm and natural attitude. We should respect every worker and abandon inappropriate prejudices and stereotypes.