Why are some public transportation modes unpopular? When answering this question, we can explore different factors that lead to certain public transportation modes being unpopular. These factors can be practicality, comfort, cost, accessibility, etc. It can start from the perspective of students or young people, considering their usual purposes and experiences of using public transportation.

为什么某些公共交通方式不受欢迎？在回答这个问题时，可以探讨不同因素导致某些公共交通方式不受青睐。这些因素可以是实用性、舒适度、成本、可达性等。可从学生或年轻人的角度出发，考虑他们通常使用公共交通的目的和体验。