One weird thing about Japanese Culture

One thing that I found really weird and hard to get used to in Japan is the automatic washing toilets, or so called "washlets". I've always known that such things existed but I never realized that it was so common in Japan. They have washlets in my hotel rooms, in many public washrooms I went to, etc. These washlets have little spray nozzles that washes your private region depending on which business (you know what I mean) you did in the toilet. Some even have functions like drying after washing, or automatic playing of flushing noises to cover the sounds you make while you do your business. The toilet I had in my hotel room even let's you adjust water pressure, temperature, and nozel position. It's amazing how much energy Japanese people put into their toilets.