your yard does not have be high maintenance, mowed, watered, or fertilized. why grass?? why a mower, oil, gas, blade sharpening??

It wouldn't work out so well when family come over and want to play badminton, or you need to go out to the shed to get something, or your dog runs around in it. Good for areas you never walk on like if you had an acre and that back corner nobody ever visits.