@chrystaltree
You wrote: <<This is a prime example of looking for trouble where none exists.>>
After selling real estate for a long time as both an agent and later a broker, I surmise that you've just never seen how much trouble a fence issue can cause.
Neighbors don't always remain neighborly forever. Or can sell their home to someone (probably a lawyer) who wants to make an issue of the fence.
So many things can come up regarding maintenance of the fence, shrubbery that grows around or over it (such as non-native nuisance vines) and even what happens if children's balls and toys get thrown over the fence and require retrieval, which requires entry to the other fenced yard, which might have a swimming pool, which poses a hazard to kids, and so on and so on.
It's good for everyone to follow the letter and spirit of the law and avoid conflict.