And that 20% of our shower water being wasted dovetails in nicely with the micromanaging centrally planned communist mindset of Obama and his fellows.
Its another of the “if everyone will air up their tires” silliness. They love their magical thinking. If everyone acts in the way they think is perfect, they the world will be pure again.
The first instance of this behavior that I remember vividly was Jimmy Carter lecturing us all to set our thermostats at 65 and put on a sweater - when I was about 12 years old.