Lawns are a stupid waste of land and resource.
Despite making my living off of 'em, I don't entirely disagree.
I've had customers that wanted lush monoculture lawns in truly terrible clay soils, and when I told them it was impossible without trucking in 4-6 inches of expensive topsoil and spending more than the property originally cost them (because the soil was so awful) they simply went to another landscaper- who cheerfully said they could do it, screwed them for whatever they could get, then promptly disappeared, leaving them with a few patches of high-cost bermuda or zoysia and a lot of bare ground and weeds, and a huge water bill trying to keep the grass from dying. One of the nicest yards I've seen only had old pines growing on it, covering the ground with the pinestraw; and the owner, scared because one of the trees blew down in a thunderstorm, had all the trees cut. I took the job clearing up the mess left behind, and when they asked me to make their yard 'look nice' again, I told them it was going to take years- and the easiest way was going to be to plant it back in pines. That woman tried to do the job herself, with help from her son; more than ten years later, that yard is still eroded, patchy, and weedy. I have no idea how much they've spent on it, but I'd bet it's many times the cost of good long-leaf pine trees.
A well kept lawn with multiple grass species and other low-growing plants such as clover, on good soil, in an appropriate climate, *can* be had; and the grass beats hell out of paving the land over. But far too many people want their monoculture golf green, and ignore the experts who tell them it's going to cost a hell of a lot more than it's worth.