We're not somehow backwards just because don't use fucking metric.
Well, umm, actually we are. The only countries in the world that don't use the metric system are the United States, Liberia, and Myanmar.
So yes, we're about as backwards as it gets in that respect.
And France, Germany, and many other countries. Matter of fact, Airbus and many others. It's around more than people think.
There really is nothing special about metric, except it's the base 10. We now know that the whole basis of a meter was supposed to be 1 millionth of the distance between the North Pole and the equator is wrong. So it's clearly just a made up system, by the French. Imagine that, using a French standard. I've heard things like it's more accurate, and such. Nope, all the measuring systems are the same in accuracy. More data points, consider temperature, Farenheight has more.
Personally I don't care. I have both sets of tools. I can go between them without much thought. Still kind of a pisser when I pick up a 10, 13 or 15 and it's not that. I have to get the standard socket (3/8, 7/16 and 1/2 are the usual suspects, then there is the 8mm and 1/4"). I suppose Metric is easier for people with an IQ below 100. I'd say even an idiot could do it, however I've met honest to goodness idiots. Their grasp on things is very light. Most of life gets by them. Sad really.
Would be nice if we'd all just use the same thing. Don't care which, just pick one.