How does anything say stuff that makes any sense without a mind? Without foresight and understanding and the ability to play with ideas at will?
No. The language ability is an aspect of the mind. And the mind needs to learn the words, the labels for things, for the language ability to have use.
But nobody needs to learn one thing about grammar to have it.
When we say there are ideas, where shall we say they are? Not what processes that allowed for their formulation but where they actually are? Are they lurking around and bumping around in the brain? No, we create a place (that really isn't a place at all) and say it's in the mind. There is a layer of separation between an idea and a brain, and there's a layer of separation between an idea and the mind, and there are two layers of separation between the brain and the mind. The mind is a broad something yet still not a thing at all. Language has evolved to accommodate our thoughts ... our thinking. Without second thought, we speak as if there is in physical fact a mind, and with no acceptance of the idea there are immaterial objects, there will be those that scramble to either deny or misconstrue the facts.
Just because there are physical processes that give rise to the existence of things like a mind that house ideas, must we be relegated to consider the electrochemical transmissions amidst the mush in the brain as the things we agree that exist? No, we create placeholder names to capture the essence of that which we speak. When we enter the mental realm, abstractions and abstract objects are abound.