Why are salt & pepper most commonly used together as opposed to salt and garlic, or other spices?

Question

Why are salt & pepper most commonly used together as opposed to salt and garlic, or other spices?

In: Culture

Answer 1

I’d imagine because they can easily be dried and stored at room temperature. You could do garlic salt, but that is mostly salt with some garlic in it. I’m not sure that garlic would dry and store well by itself.