求翻译：当今社会，有人认为公交车上年轻人必须给老人让座，因为，尊老爱幼不仅仅是民主传统，也是个人修养与素质的一种具体体现，更何况，年轻人，身体各方面都还很好，站一下下不会怎么样的。是什么意思？

Today's society, some people think that young people must bus seat to the elderly, because not only care for the young democratic tradition, but also personal integrity and quality of a specific embodiment, not to mention, the young, still in all aspects of the body Well, do not under stand what hap