What is the main idea of the text?

Câu hỏi :

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FOOD AROUND THE WORLD

It isn't amazing how much time we spend talking about food? "Have you ever eaten ...?", "What do you have for lunch?" and so on. And yet, when you travel from one county to another, you find that people have quite different feelings about food. People often feel that what they eat is normal, and what other people eat is strange and silly. In most parts of Asia, for example, no meal is complete without rice. In England, people eat potatoes every day. In the Middle East, bread is the main part of every meal. Eating becomes a habit which is difficult to change. Americans like to drink a lot of orange juice and coffee. The English drink tea four or five times a day. Australians drink large amounts of beer and the French drink wine every day.

The sorts of meat people like to eat also differ from one country to another. Horse meat is thought to be delicious in France. In Hong Kong, some people enjoy eating snakes. New Zealanders eat sheep, but never eat goat meat. The Japanese don’t like to eat sheep meat because of its smell, but they enjoy eating raw fish. So it seems that although eating is a topic that we can talk about for hours, there is a little common sense in what we say about it. People everywhere enjoy what they have always eaten, and there is very little we can do to change our eating habit.

 What is the main idea of the text?