> I don't get people who genuinely care for its own sake about their neighbors lawn having weeds.
Certain types of invasive plans are noxious, outright poisonous, encourage hay fever, or just spread so fast that they can end up destroying neighbor's yards as well.
Plants don't obey property lines.
Edit: Unkempt yards can also be breeding ground for pests. From mosquitoes in still water to hoards of rats. Most people don't want to put up with those styles of annoyances that are trivially avoidable if everyone in the area cares just a little.
> The most annoying things about neighbors are dogs that bark all day, and the leafblowers and lawnmowers.
Do you not encounter leaf blowers and lawn mowers in a HOA community? I would have expected it to be much worse because there would be maintenance crews doing it for every house in the area vs maybe a few houses on a ~20 house block.
Unfortunately, the court system is not friction-less enough for "your weeds got in my yard" to be a remotely workable reason to go to court. It would be nice to live in a society where justice flowed as freely as municipal water and common law obviated the need for all other forms of organization or regulation, but in the real world going to court is so expensive and time-consuming that we need a lot of other forms of power around to avoid overusing that method.
If you have a plan for reforming the local judiciary to be so effective that HOAs are no longer necessary I am all ears, but I have not heard any proposals for doing that.
Certain types of invasive plans are noxious, outright poisonous, encourage hay fever, or just spread so fast that they can end up destroying neighbor's yards as well.
Plants don't obey property lines.
Edit: Unkempt yards can also be breeding ground for pests. From mosquitoes in still water to hoards of rats. Most people don't want to put up with those styles of annoyances that are trivially avoidable if everyone in the area cares just a little.