What are the possible drawbacks of using Phoenician measurement and writing?

Phoenicia from Ancient Greek:

was an ancient Semitic-speaking thalassocratic civilization that originated in the Levant region of the eastern Mediterranean, primarily modern Lebanon.[5][6] It was concentrated along the coast of Lebanon and included some coastal areas of modern Syria and Galilee (northern Palestine), reaching as far north as Arwad and as far south as Acre and possibly Gaza.[7][8][9] At its height between 1100 and 200 BC, Phoenician civilization spread across the Mediterranean, from the Levant to the Iberian Peninsula.

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answer is b shrapnel injuries

trade regulation is a field of law, often bracketed with antitrust (as in the phrase “antitrust and trade regulation law”), including government regulation of unfair methods of competition and unfair or deceptive business acts or practices. antitrust law is often considered a subset of trade regulation law. franchise and distribution law, consumer protection law, and advertising law are sometimes considered parts of trade regulation law.

in general the theory of economics says that the more open to trade a country is the better   the result for the same country and the whole economies.

in real life countries impose taxes, quotas, etc which is not so good for the economies.

this kind of commercial war between the usa and china is slowing down the growth of the whole world so we can say that it is a draw back of trade regulations. and the free trade agreements are benefits of trade regulations.