I dunno. Everyone is always saying how smart I am but I'm a total idiot half the time. Maybe they're being sarcastic and I'm just to dim to catch it.
It's not that people are dumb really, they've just been sold a bill of goods about what a lawn should be. This marketing ploy has become so ingrained that many just can't resist the social pressure to conform and with home owners associations they may not even have a choice.
Maybe they're being sarcastic and I'm just to dim to catch it. 
