Water is not the most important resource , clean drinking water is .

BTW , many countries and regions use unpurified water from natural bodies like rivers and lakes or ground water for things like toilets , watering plants and lawns , washing cars/streets/lawns etc .

Have you ever considered that's why it's the worlds most important resource?

Cause we practically have an unlimited supply of it. So even thought it's the most important resource, it's not something we lack of.

We'll never run out of water. We don't really use it up, it just cycles through the environment.