In response to the statement that "traditionally, the three countries listed as not using the metric system are the USA, Liberia, and Burma (Myanmar)," I hasten to point out that the U.S. is NOT a non-metric country. By law, the metric system is the "preferred system of measurement" here.
True, everything in the U.S. is not yet metricated. But neither is everything in Canada, Britain, and many other countries who are considered metric. I have advocated strongly in the past that we eschew this "we're not metric" approach and instead educate Americans to the fact that we are about in the middle of being converted. For many good and practical reasons, we need to push the conversion forward.
Do Americans realize that pharmaceuticals, medicine, nutritional information, alcohol, lighting, nuclear energy, electricity, and many other areas are already partially or fully metric in this country? That's the message I think we ought to push. The glass is truly half full, not empty.
Martin Morrison Columnist, "Metric Today"
