随地吐痰，很少见到，说实话。 人多时候更少见， 除非感觉特别难受，或是身体不舒服，或者身上没带纸，或者附近没有垃圾桶，很少人会这样做，或者农村(地方大，有土地，土面消化吸收好) 所以您说的在中国经常能见到，在哪个城市，什么地方等等，要细节化。 从小学校老师，家长都说不要随地吐痰。(农村) 否则可以说 您说的这个很多人都不会同意。

oh man please, i saw Caucasian people in Canada spitting on the ground. There's nothing about nationality but personality.

(I know this question is in Chinese and I should answer in Chinese but my Chinese sucks ass so I'll answer in English. If you don't read English and aren't interested in learning it, either, I apologize but someone will understand it, anyway...) I think there are gross people everywhere. I'm in the United States where we think we are so much cleaner than everyone else in this world. I'm also originally from Singapore and a lot of us Singaporeans may think the same way. But goddamn, the other day, I went to see a movie and after the movie was over, I had to use the restroom and some guy (a white American guy, mind you --- I don't know why his race matters but when people in Asia think of Americans, they only think of white folks *shrug*) Anyway, he took a massive shit, came out of the stall, looked himself in the mirror, fixed his fair and just walked out. The son of a bitch did not even wash his hands! Oh yeah, to top it off, once he was outside, the dude coughed and spat out some major phlegm. He was a disgusting motherfucker. P.S. Oh! I actually have a druggy neighbor that spits a lot. He's a young 30 year old Armenian guy who came to America as a kid. (Again, I don't know why his ethnicity or nationality matters but I guess I'm just trying to say that it's not just the Chinese who spit. lol) Armenians look a bit Middle Eastern/southern European but they are often light-skinned and the US government categorizes them as "whites". This guy doesn't have a job and I don't think he ever did. A neighbor showed me an old newspaper article about the guy and his mother when they were caught stealing money from a shopping mall. Something tells me he probably stole to buy drugs. Anyway, the guy spits every fucking place he goes to! He lives upstairs and he even spits downstairs from his balcony ALL THE TIME. I'm surprised the young couple downstairs hasn't said anything to the landlord. Their poor patio must be contaminated with his druggy mucus and phlegm. Disgusting.

在我的印象里，有素质的人都不会随地吐痰啊。

中国人确实有吐痰的习惯，比如我的长辈们，会在公共场合随地吐痰，一方面是之前养成的习惯问题，有样学样。另一方面，我们中国社会之前是圈圈结构，要么是我的，要么是你的，要么是他的，没有公共概念，我们受西方影响100多年，现在逐渐有了公共的概念（老年人此概念不深），所以年轻一代，很少有随地吐痰的习惯。至于吐痰习惯来源，没人研究过，没有答案，个人觉得和中医有关，或是生活习惯。