香港和广州比较明显的区别之一是，前者是内地游客的旅游点，后者不是。经常去旅行的人应该都觉得凡是那种聚集了全国各地游客的经典旅游景点都是肮脏混乱的。大人帮助小孩随地解决大小便在这些地方也是见怪不怪的。香港只是不幸成为了这种地方之一而已。以下是香港人制作的PPT：

我作为广州人（i.e. 蝗虫一枚）也感到震精了的是大小便直接拉到城市建筑和设施的公共用地上（如地铁列车上，商场地上等）的行为。因为我在广州没有见过——一次都没有。就算是在旅游景点，我能理解的也只能是自然景点（例如山上）找地方解决，而不是在人要走的路上或者人文建筑的地方解决，也没见过有这样的，顶多也就是小便在建筑物背后角落。

当然，养尊处优的我的见识实在太有限了。通过全体网友上传视频照片收集起来的事情，再少见也可以堆积得很可观。广州也不时有网友上传的类似视频。但实在很难像上观这个香港的PPT那样搜集到这么丰富的素材。所以，是不是旅游点还是不一样。作为旅游点的香港能比广州吸引更多奇怪的人。

我在Quora上参与问题What kind of common sense do people who live in China lack?时讲了这么一段话，也许可以稍微中和一下：

It is fine to split, urinate, or defecate on the ground in the villages in China. In fact you have to if you visit one because there are either no toilet or because the “toilet” is merely a permanent concentration of defecation with no sewer, so disgusting that you will prefer the ox’s way — shit anywhere you happen to be whenever you need to. As the cities have been very modernized in the hardware, there is still a large area of villages in the rest of the country, from which migration workers come who for the first time cope with the cities’ “correct manners”. To fine them for their misbehaviors is unkind. To educate them is useless because they live and work in the city only temporarily. The only way is to tolerate it and constantly increase the percent of urbanization and modernization of the villages area. People can only learn the right manner long after the environment shows they really need to.

不这么抹黑中国农村的话很难解释清楚为什么中国有这么多人直接在路中间脱裤蹲下拉屎。