The natural angle is cool if you don't want to lounge around in your yard. The pollen, ticks, mice, raccoons, weeds, etc. are generally not what people are looking to deal with in urban/suburban living.<p>I have a shop on a couple of acres that I let get pretty unruly because I don't really give a shit how it looks. After picking off quite a few ticks and dealing with raccoons constantly trying to get into the building for a while, I just started knocking down all the bushes and kept the grass real short. No issues since.<p>Additionally, the HOA rules aren't there to stop well meaning homeowners who want a more natural yard, they're there to stop completely untamed blight. The latter case is significantly more common than the former and it is absolutely a problem. As much as it pains me to say (I think HOAs are one of the saddest, most pathetic parts of American life), lawn rules are reasonable at their core, even though the enforcement is overzealous.