We can blame the Roman's and, in no small part, William Garrow for all that ..
[1] https://en.wikipedia.org/wiki/William_Garrow
Despite concepts in common there can still remain the complaint of Shaw (and later Wilde) that we are divided by a common language.
Readability is good, at some point in any legal procedure though there comes an importance of being precise about nomenclature.
In the field of mathematics, for example, such phrases as "if and only if" and "neccesary and sufficient" go deeper than casual reading might understand.
Now comes the twist in law that common phrases may have different interpretations between countries, or as may the case in the USofA, between different counties or states.
Still any move to increase understanding of the law in general with pointers to the law in specific locations is a good one.