Family is the "basic cell" of society, and also an individual unit that has an important impact on human society. Since the 1980s, the number of families in the world has increased sharply, the size of families has been shrinking, the divorce rate has generally increased, the problem of aging population has become increasingly serious, and people's family concept is also changing. The profound changes that have taken place in the family have brought great impact on social development, which needs more attention from the international community.<br>
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