As a world of progression, our society has allowed things to change. With that being said, we should change phrases as well. The phrase of "heads or tails" is a dated term that I believe society needs to update to a better term "tails or heads." People have been trained to predict heads when the phrase "heads or tails" is asked. Imagine the benefits we would have if we switched the phrase up? We may be able to solve world piece with this.