It looks like it's perceived as a modern, costly setup in Japan(and the thing shown in the article is expensive) but the simple comod-bidet setup is inexpensive. It's quite common in India.
Quite common in Thailand too, and as anyone who's ever used one knows, they are far superior to toilet paper. I've been meaning to install my own sink sprayer next to my toilet for a while now. Guess I should get to it.
It looks like it's perceived as a modern, costly setup in Japan(and the thing shown in the article is expensive) but the simple comod-bidet setup is inexpensive. It's quite common in India.