Oh well...
Obviously most Americans don't seem to have the mental capacity to realize how much simpler the metric system is. They still fiddle around with fractions and pounds and what ever else the twisted Brits could come up with. Wasn't it President Carter who tried to change this? But in a country, where 80% of the people are ill educated and most can't even spell their own language correctly, what do you expect? I had a granite countertop installed once. A guy came to take measurements. I heard him mumble things like "48 strong... 72 low... I'm still amazed that the countertop actually fit!