Hello friend @emiliomoron
Why do we waste water?, the immediate answer is yes, there is a disproportionate irrationality in the use of water, unfortunately as a human species we have not yet valued the importance of water for us as biological beings, element that makes us wasteful beings of water.
Best regards, good luck.
Greetings my friend. Certainly we have not valued its importance, perhaps because very few have lacked the vital liquid, which has made us wasteful.