I have care for my lawn and put a lot of effort into it, with most of my prop being grass with a small portion that is gravel

What is the landscaping around single family homes like then? Or do you just have urban & rural without an in-between?

This very much depends on the place. There are plenty of areas of Europe where groundwater at ordinary well depth is no longer potable and the community relies on a reservoir with a different source. So, if your property has an old well, all it is good for is watering a lawn or orchard, washing your car or bicycle, etc.

Lawns reduce the air and ground temperature significantly. Even if you have a shortage of water in your area, finding a way to maintain a natural lawn has benefits. That isn’t the same as maintaining a golf course, but watering a lawn to keep it from dying for a few peak-heat weeks is well worth it, in my opinion.

This is the next environmental movement i'd love to see, the end of lawns and acceptance of native landscapes all over the world, but especially the western world.

Don’t water the lawn (or fertilise or roundup etc.) in Australia: for some reason it stays green without it: buffalo grass is as tough as nails! Sometimes it goes yellow but it always comes back!