Re: Not likely.
IANAL, but that being said, I was a Political Science major, and I can answer alot of these questions for you.
>Does the U.S. government require that:
>- all our scales read in pounds?
No, but food scales in supermarkets and such are regulated by the individual state governments and as such are generally required to be accurate in pounds as well as in Metric.
>- our food containers are measured in ounces and pounds?
I believe the FDA requires it, as does the USDA, yes, though there are always metric weights on packages too, which I believe is also required.
>- our drinks are usually measured in ounces, pints, quarts, and gallons?
Same with food, the FDA and USDA require that measurements be in both metric and customary.
>- our meteorologists report the temperature in Fahrenheit?
Thats one Ive never understood, because a good number of divisions inside the National Weather Service, like the Space Weather Prediction Center and National Hurricane Center do most of their work in metric units. Celsius kind of sucks.
>- our sports teams measure their fields, courts, and arenas in feet?
No, but some sports governing bodies specify feet, yards, meters, kilometers or miles for their venues. Look at the International Rugby Board's laws for Rugby Union, it specifies that the field should be measured in meters. On the same coin, look at the NBA's rules for basketball, their measurements are in feet.
>- our construction industries primarily refer to feet and inches when specifying material sizes?
Alot of that has to do with building codes, which are a State issue, not Federal.
(side note: many government construction contracts use metric)
^^True, though Ive noticed that some GSA contracts tend to use customary for whatever reason.
- our sportscasters talk about a linebacker's size in feet and pounds or a baseball pitcher's speed in mph?
Well they could talk about sizes and speeds in metric, but not too many people would really understand.
The Feds could change everything over to Metric, it could be done legally, but it would cost much more than it would save and they realized this in 1977.
The better idea is to convert specific Agencies and Administrations, like NASA, that have a scientific, military related, or international mission as well as parts of specific other agencies like FEMA, which for instance still uses Americanized measurements for Radioactive contamination on their radiac sets and such, like the Rad, Roentgen, and Rem. While the very same radiac in use by the Army will measure in Sieverts and Grays.