What do camodes tell us about the countries where they are located?
I'll let you draw your own conclusions.

Iranian toilet - indoor plumbing being said to be a sign of affluence in modern day Persia.

Outside toilet in Iran

Public toilets in China oblige that you squat and you are expected to bring your own toilet paper should you wish to wipe. I suppose I should admit that on more than one occasion, I entered the stall in a rush, having forgotten to bring toilet paper with me on my sojurn - but wearing socks... and left without my socks.

The plumbing pipes almost inevitably leak, allowing you to find the toilet an a moonless night with no effort at all.

I have dropped my trousers in many countries. In France the public facilities are compact and some take credit cards/debit cards in addition to coins.

But in Japan, the toilets are technical marvels, requiring that you make decisions on precisely how you wish to be washed and dried following your business.

And if you don't read Japanese and you can't figure out what the icons are hinting at, you can be deluged and embarrassed.
Japanese toilets are also in use in Finland. The icons are different and if you don't read Finnish, you're no better off than you are in Japan...