You mean, Opebo, that you use modern toilets in Thailand borrowed from the European and American traditions where you sit on a seat?
Yes. In modern gas stations and other public buildings, both Western and Squat toilets are made available. (obviously the squat toilets are modern and clean, made of ceramic just like Western toilets, and looking nothing like the photo you contributed).
To find toilets that looked like your photo in Thailand would require getting quite far off the beaten path.. perhaps going to a village. But all sizeable towns and everything on the main highways would be 'modern'.
You're being stupid. If you have sh**t on your hands, can you get it off with just toilet paper? Or is it cleaner to use water?
In Thailand I of course use the sprayer, which gets one much cleaner than any toilet paper could ever do, in a matter of seconds. I do then use toilet paper to dry, but this is not a particularly essential step.
Face it Snowguy, toilets in america are inferior, and american habits are filthy.