See Through Public Toilets in Shibuya, Tokyo.  Why would they make it ?
Channel: Begin Your Journey
Date: 16/06/2021

These transparent or see through public toilets are designed by award winning Shigeru Ban as part of the Tokyo Toilet Project. There are seventeen designer toilets to be completed in Shibuya.

Location:
Yoyogi Fukamachi Mini Park (1-54-1 Tomigaya)
Haru-no-Ogawa Community Park (5-68-1 Yoyogi)

Japan is known as one of the cleanest countries in the world. Even public toilets have a higher standard of hygiene than in much of the rest of the world. However, the use of public toilets in Japan is limited because of stereotypes that they are dark, dirty, smelly, and scary. To dispel these misconceptions regarding public toilets, 

These public toilets are being designed by 16 leading creators, and will use advanced design to make them accessible for everyone regardless of gender, age, or disability, to demonstrate the possibilities of an inclusive society. In addition to the construction, we have arranged for ongoing maintenance so that people will feel comfortable using these public toilets and to foster a spirit of hospitality for the next person."

Location:
Yoyogi Fukamachi Mini Park (1-54-1 Tomigaya)
Haru-no-Ogawa Community Park (5-68-1 Yoyogi)