Yes, I am familiar with grass. It’s nice to have in some places and in limited amounts. However, I’d wager that the majority of grass is not used for anything except aesthetics. There are some other benefits, like keeping insects and wildlife away from structures. While this article is hyperbolic, it makes some good points. Grass is an unproductive monoculture. It’s cut before it even goes to seed, and therefore doesn’t produce food for animals like it would in the wild. People use polluting ICE engines to tend to it (I had a neighbor who mowed his a 1 acre lawn literally every day with a riding mower). An average lawnmower, due to inefficient engines and lack of pollution controls, puts out emissions similar to a full size pickup. People cover lawns in toxic herbicides, pesticides and fertilizers. And then, much of what is cut goes to the landfill, not even compost.
In my experience, people are generally unaware of current events and history. They don’t understand basic math. They are very poor at critical reasoning and don’t comprehend things like evidence or facts, so they’re easily convinced by hunches or baseless claims prominent people make.