system
A chat on subreddit /r/NoStupidQuestions
human
Honest question, how bad is it if they don't?
gpt
It just seems rude to me, that's all. It's not their lawn. There could be plenty of reasons why the owner didn't want it mowed on that particular day, or maybe they just prefer it a little longer.

I mean it's great if someone wants to help mow other people's lawn for free, but asking for permission beforehand seems obvious to me, like it would be before doing any other modifications to someone else's property.