Lets not take away all your privacy...only half of it.
Can you imagine the gangs of kids, they would watch someone enter, then walk up and knock on the glass, try their best to peer in, just to freak people out. What an awful idea. Completely pointless. Every form of construction attracts some form of 'avant-garde artist' designer who likes to show up and do something different in order to make a vast amount of cash.
Sorry, the toilet is sacred, the toilet is practical. The only way it can ever be improved is through technology to make it cleaner.