"Share" really means send to someone else

"Export" means "save this working file in one of many formats, including possibly other formats that are first-class in third-party apps but not this app"

Share doesn't really make any sense. And other macOS applications have an Export menu all right.

Yes! It makes total sense to share with myself a Pages document as PDF! I‘ll promptly think of sharing if all I want to do is save/export a file in a different format. I think we can extend that helpful language to the entire OS! No need for a “copy” or “download” button, it’s all sharing, one way or another! Share share share!

> just more user friendly language

you try to justify it in a logical way, but you fail to realize that this is inherently subjective

Yes, yes, everyday I share myself a glass of milk from the fridge. Sure.