:The following is the introduction from Customary measurement systems. 

 Traditional or customary systems of measure date back to antiquity, many to the Roman Empire in Europe, Cultures formerly in the British Empire, and around the rim of the Mediterranean Sea. 

 Used by merchants and peasants, though slowly being supplanted by the more rationale metric system, in many lands, these systems are commonly used still in everyday life, (e.g. Measuring cup) as they are common units, everyday units, sized for the kitchen and garden and household tasks imbedded deeply in the history and culture of whole peoples as a good foundation is in bedrock.  

 As such, they linger stubbornly on in day to day life, usually without sanction or favor from law, as countries move to the metric system in trade and industry, they are part of their cultural identity. As such, they may never fade from everyday use as they are perennially renewed as new generations must master the arcana of cookbooks and running a household. 

 :Paragraph one is somewhat Eurocentric and grossly over-simplifies matters.  Does the Imperial system date back to antiquity?  Not as such but it is in part based on Roman units.  However, as with many other systems, Rome is only part of the story. 

 :Why are we singling "merchants and peasants" out?  Why even use such terms this way in a modern encyclopædia article?  "the more rationale metric system," I assume the author meant "rational" in which case this would be POV.  "in many lands" which section of this long and winding one-sentence paragraph does this flowery phrase belong to? "they are common units ... as a good foundation is in bedrock." so artfully written but POV nonetheless. 

 :Paragraph two, once vetted, will say nothing more than that customary units are still in use but metrication is in progress.  These two facts are mentioned in this article.  Paragraph three has little more to add. 

 :Saying that they linger on (stubbornly or otherwise) is just another way of saying that they are still in use.  "countries move to the metric system in trade and industry," metrication has a wider scope than trade and industry alone.  This is repetition anyway as metrication had been mentioned in paragraph two. 

 :"they are part of their cultural identity." this is just more of the same POV.  "they are perennially renewed as new generations must master the arcana of cookbooks and running a household." nonsense, new generations simply buy new cookbooks, you can run a metric household (it's been proven a few million times). 

 :I don't enjoy being so negative.  All I want to do is explain why none of this will be finding its way into this article if I merge them as I intend to do.  

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