No lies detected. When you live next door to a country with an economy 12-times larger that also refuses to convert to the metric system, it becomes impossible for us to stop measuring stuff by the width of a man's thumb*. A gallon of gasoline is still 4.55 litres though.
*Or, 1.5 Trump-ian thumbs.
WRT refusing to convert to Metric- it has crept in, but I'm not even sure schools teach it, aside from some science classes and anyone who has spoken to most Americans knows they didn't do well in those. Have you seen Jay Leno's old segment where he asked people simple questions, to find out what they don't know, but should? It's embarrassing and sometimes, pathetic. It's very disappointing that people are so resistant to new concepts.
I know people near my age who don't know the Metric System, so I have to assume they completely forgot, or the schools had a choice to teach/not teach/teach some, but not all. Our 7th grade science class taught us Metric, but I don't know if the rest of the school was required to learn it. This was 1970, so it would have been at the time it was being attempted.
However, many non-metric units are still used in England but the difference- they know more than one system and here, many people can't count change.
Five Trumpian thumbs?