I hate to generalize but this woman is mostly right. I visited China and the Chinese are some of the most ill-mannered people you will ever meet. Most have absolutely zero etiquette. They spit everywhere and I am not exaggerating. I went on a public bus once (worst idea ever) and they all sat there hacking and spitting there snot anywhere on the floor. I'm sitting right there and this lady beside me almost shoots her loogie right at my foot. She had this expression like it was completely normal thing to do as well. Oh and one of the worst things ever are some people covering one nostril and blowing out the other to literally fire there mucus out. The constant excretion of mucus happens mostly anywhere and everywhere, sidewalk, restaurants, elevators, public transportation, bathrooms...
Lines and order do not exist, you might as well remove every trash can in China since most throw there garbage on the floor. Bus I mentioned earlier, covered in trash. I was shocked at there behavior, i guess I expected way better from the people of China.