Fantasy Mavens: What are some things you rarely read about in fantasy books but could plausibly exist in fantasy worlds?

When I read a fantasy book, specifically one set in another world without the modern technology that we have today, I am sometimes struck by what is lacking that could reasonably exist in such a world.

For example, I cannot remember a fantasy book where someone drank coffee. Since coffee is made from beans and can be made without electricity or other modern technology, it seems plausible to me that characters in these kinds of fantasy books could drink coffee.

So, fantasy readers, what else can you think of that could reasonably exist in a fantasy universe?