[otabdeveloper2]

> Lawns are aesthetically pleasing to humans.

Citation needed. My anecdotal experience doesn't agree.

> It has been widely observed...

Really? By who?

> ...that humans, having adapted to life in the African savannah,

Citation, again, needed. As far as I know, practically no ancient hominid artifacts have been found in the 'African savannah'.

> ...have a tendency to turn everything into an idealised version of their natural habitat.

Except that lawns are absolutely nothing at all like an 'African savannah'. And the fact that the largest part of humanity (India, China) live in habitats that resemble ant hills more than they do a savanna.