Why do island cultures tend to be more isolated?

It has been observed that people who reside in the islands displays different customs compared to the people in some parts of the world. The reason behind this is that the people in the islands are more isolated from the changes that happened in the cities outside the island.

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economic competition is inefficient and wasteful.good luck

explanation:

united states reinforcements contributed greatly to three allied victories in france at: cantigny (first major american battle), argonne (the largest in the united states military history, involving 1.2 million american soldiers), and château-thierry (one of the first actions under general pershing).