Often I hear many reasons why America should go metric. One of the more common ones is "America should go metric because the rest of the world has." While there is validity in that argument, I personally don't think it is appropriate reasoning. It doesn't mention the economic, or education benefits. It just says to do what the rest of the world does. Alot of folks may not be very accepting to that reasoning. My suggestion is to encourage metric for its actual benefits, vs the more philosophical "the whole world uses it" debate. In this way, people can get a better understanding of why we should go metric vs the more emotional debate of America not following the rest of the world. Be sure to talk about the cost savings, and the efficiency of trade, for example, when discussing American metric transition. Like I said earlier, avoid emotional debates as they may have the opposite effect of what was intended. Be polite, and be understanding.