I salvaged my PC case from an abandoned meat packaging plant converted into a temporary police search and seizure back in the Bush Jr years that would rent space out for Airsoft. They just let us have access to that abandoned plant, and Lord Jesus were there biohazards.
The Bandybucks, Tools, and Baggins are well established family lines in the Shire - some like the Tooks are thought to be some of the original Hobbit lines - and both Pippen and Merry have known a life of privilege and comfort prior to the story. Frodo does as well, but mostly because he's the named heir of Bilbo. So as far as Hobbit society has any sense of gentry, all the hobbits but Sam would count.
I'm gonna agree and raise you: I think fungi took over the world before dinosaurs did. Think about it, the vast networks of mycorrhizae that allow for forests to exist is all fungus, some of the first standing organic structures on the planet were fungus, and when everything dies it gets consumed by fungus. Hell, there are radioactive fungi near Chernobyl that how found a way to consume the radiation as food. Fungi are wild.
This is normal deer behavior. It only gets sketchy if they talk to you.