My comment was about the bad map. The map makes it seem like metric is a binary condition: you use it or you don't. That is not true, even though metric is the

My comment was about the bad map. The map makes it seem like metric is a binary condition: you use it or you don't. That is not true, even though metric is the primary measurement system in most of the world. Many non metric units are in common use in primarily metric countries, just like the U.S. doesn't only use customary units. The UK should also be highlighted on the map since they use stone and pints, as well as Canada and apparently Singapore and other countries in southeast Asia that use other units like catty and pounds. That Singapore or Australia don't use stone doesn't disprove my point in the slightest. I am just listing examples of non metric units in active use, in countries that the map claims use metric.