My lawn, like what I consider a 'typical' lawn, is grass. Grasses spread through rhizomes. Rhizomes are one of the things that define grasses. The rhizomes are what let the grass survive going dormant in the hot and dry summer, the frozen ground and deep snow cover in the winter, and the frequent fires every few decades for which the entire local ecosystem is heavily adapted. And yes, grasses will reproduce sexually as well if left uncut/ungrazed/unburnt.
You point was that lawns are not normal. My point is that lawns are completely normal, at least where I live.
You point was that lawns are not normal. My point is that lawns are completely normal, at least where I live.