Judging others by their education level and trying to avoid chatting with them is inappropriate and biased. Bus conductors also provide services to passengers, and their work deserves respect. Interaction between people is a normal part of social interaction. Most conductors are just performing their duties and communicating with passengers normally when they are at work, such as informing them of stops and answering questions, etc. This is not chatting. If you don't want to have too much communication, keep a polite response, answer questions concisely, and focus on your own things (such as looking at your phone, listening to music, thinking about work and study, etc.), you will naturally reduce the frequency of communication, rather than deliberately avoiding it based on unreasonable stereotypes. Abandoning this one-sided concept and treating every worker with equality and respect can create a more harmonious and friendly social atmosphere.