Why is theory used incorrectly in most everyday situations?

Because people use theory to describe what there opinion is when in fact a theory is hypothesis that has been tested several times and has been proving yet is not universally accepted. Some also regard theory as absolute fact, yet in turn a theory is not universally accepted although it does include factual analysis it is not an absolute law. I like to think of a Theory as a logical way of piecing together evidence to reach a conclusion.