Earlier quoted context omitted.
Yes and no. You have dirtyness in Japan everywhere too, but they just systematically clean a lot and very often. Public toilets can be cleaned like 10 times a day. This frequency is unseen in the US
Can you link the source? I've never heard before that the average rate was much higher then the average rate in the US.
source is my eyes. There are cleaning sheets in most public toilets and you can see how many rounds they have every day since they stamp it every time.