They are pretty expensive tho. And I had heard that the maintenance was quite high. They get covered in bird poo, etc and you need to clean them to keep them looking good. And there is the run-off to deal with.I hate lawns. Water wasters and time.
Get an artificial lawn. Those things actually look very realistic.
I'd also have weeds before I'd use any chemical weed killer.
But you make an interesting point there. Over here, we dont often have a shortage of water, so when it comes to lawns, that is not a consideration. In fact, we have the opposite. With many people now hard surfacing their garden areas, we have drainage issues which can result in local flooding in some areas.