The right pressure for each task, with minimal effort anyone can start to show an appropriate use. Several home installations are plenty of pressure, simply excessive for the usual tasks on it. With kids or people that don't understand what a resource waste is, there are possibilities of incorrect applications that finally harm when it's time to analyze global numbers.
Some areas carry a very high rate per day of about three hundred liters, individually. We think is a good exercise trying to visualize what that quantity is for understanding the big leak somewhere. In this planet, there are still who dies or have serious health issues right now because the lack of drinking water. A sign of respect must appear in keeping the necessary use and to not waste without sense, just for having too much. To make the water drinkable there's a complex process that involves energy and chemicals, also some leaked to the public atmosphere and then it converges with the air, soil and aliments that every organism, sooner or later, is going to need.
After a bit of thinking, sometimes you discover that with other method it's possible to do the same but wasting far less. For instance, washing dishes some people need 10 liters and others achieve the same with 1 liter. How? Because the second does it better and knows the exact water pressure and closes the tap when there's nothing underneath. If you accumulate water in a recipient when other objects are being cleaned below the tap, that water also serves and it was saved with intelligence. It's not the first time that an adult person was seen requiring one liter for cleaning a spoon, a little metal object.
Perhaps it's viable to reduce the flow in a general faucet, but for sure there are filters that impede an excess pressure reducing the waste. Doing this also implies less wasted money for paying the bills, so it's always a good inversion.