How many years until a robot like this will cut your grass, weed the lawn, and weed your flowerbeds?
* https://www.bosch-garden.com/gb/en/garden-tools/indego-home....
* https://www.deere.com/en_INT/products/equipment/autonomous_m...
Grass where it serves some benefit such as a backyard at least serves a purpose. Front lawns in locations where they are ornamental are a blight.
Townhouses don't have lawns: https://en.wikipedia.org/wiki/Townhouse And they're excellent building blocks of walkable neighborhoods.
How very kind of you to epitomize the "get off my lawn" meme, but I'm not on your lawn. I'm not telling you to get rid of your lawn, but the concept as it exists now and it's popularization is at best wasteful, and in some cases actively causes problems with water availability in some areas. Some reform in the popularized concept of a front lawn would be beneficial to everyone.
I get having a lawn in a desert is a poor use of water, but for many houses and recreational areas, it's an excellent way to cover ground.