Earlier quoted context omitted.
The 2006 CIA Factbook stated that the "US is the only industrialized nation that does not mainly use the metric system", (in addition to non-industrialised Burma/Myanmar and Liberia).
This particular case is not English vs. Metric, but rather lack of cohesion in the metric system. English: Use commas for separating thousands, use periods for decimals. Metric: Use spaces for separating thousands, use periods OR commas for decimals. In this instance, the English approach is obviously the superior one, as spaces are more confusing to use as a delimiter than commas, and there should only be one way to…
Yes, and the grand-parent already said that this particular case is insignificant compared to English vs Metric.
Let's first fix this, and then we worry about decimal separator.