Yes most Humans have free will, this can be seen in he area of choice and act of preference when it come to some certain matter, ideas, discussion, or National issues. And we  see people contradicts each other. Most of the time it may be personal. In the Bible God said " My thought for you is of good and not evil, to give you an expected end" This is the will of God for all His Followers. irrespective of what people say or do that is a free will of God for his followers. So also, like Adam has a free will to name every animal God created with its name,that is his free will, and what ever name Adam called the animal,that is the name such animals bears till date.It is  possible if Eve was allowed to name the animals as regarding her free will to do that, the names of some of the animals we have in the world today might be different.