We had a neighbour, this was years ago, who was an older gent - and he had this theory, 'I don't have to mow the lawns, I've got no one to impress'. - Excusing the element of sadness to the tale, the sentiment about impressing others with your lawn holds true, eh?
I used to do his front lawns just to keep up the street appeal - not sure he ever noticed to be honest.
Anyways, have a good one.