Someone on the train wants to change sleepers with you. Would you like to? Why?

I met it twice, and once I changed it, people were very polite, kept saying thank you and bought me water to drink. Another time I didn't change it, saying I didn't change it. At that time, I was lying in bed listening to music and leaning sideways. An old man shook me directly. He said he bought the upper berth and wanted to exchange it with me. The tone of voice is that kind of uncomfortable feeling, that kind of bossing feeling. I said I bought this berth at a higher price, and I won't exchange it with you. You can go to the stewardess if you are in trouble. Then he was very angry and said that I didn't know how to respect the old and love the young at a young age, and young people had no quality. I said uncle, if you have quality, you won't boss around a stranger. You woke me up for no reason when I was lying here, without a word of courtesy. Do I have to respect you as a young man? Respect in this world is always relative. You respect me, and I naturally respect you. Only your children have the obligation to take care of you. I'm sorry, I don't know. Then I put on my headphones and walked sideways, ignoring him.