Where I live all the grass in peoples yards are not native and would absolutely die without constant upkeep by humans. I really don’t understand the point. I get that it looks neat and upholds the aesthetic of luxury yards, but I’ve never thought natural foilage was ugly and never understood why it was unwanted by people. The picture perfect at grass lawns are very uninviting for people to actually walk around on. At that point it’s basically the equivalent of putting plastic on all your furniture and telling guests not to sit on it