Since customs are the products of history, they inevitably change with the development of history. Wherever they can exist, they all have their dependent natural conditions and social environment, the vicissitudes of life, the development of economy and the change of institutions. They all promote the change of customs. The decline of some old customs, like the rise of new customs, is the metabolism of nature and society, and it is a reasonable phenomenon. The decline and decline of some old customs does not necessarily have to be revived. For example, at the beginning of the founding of the people's Republic of China, some minority languages have died out. The Institute of Minority languages of the Chinese Academy of Social Sciences once helped these ethnic groups restore their characters, but it went against their wishes and was not welcomed by the local people because they thought that they would rather learn Chinese characters than go out of their hometown. However, since this kind of writing has existed in history, it is a cultural heritage worth cherishing, which needs to be preserved in historical memory as a cultural relic, so that modern people can perceive the wisdom of their ancestors and make it die and never forget.
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Customs should be treated from the perspective of historical development