People may have different opinions on the meaning of words. The opinion of a child may differ from the opinion of an adult. However, if everyone decided to come up with their own version of a "dictionary", it would be extremely difficult to communicate. Therefore, it is important that there is a formal dictionary which everyone approves of as otherwise, it could lead to lack of communication and misunderstanding. Even though it may not be right, it would atleast provide people with certain guidelines. Secondly, if one begins to question a language ( because the origin is unknown), it will make it very difficult to survive in everyday life. If one begins to question everything, it would not be realistic. Other than that, there is no solution to this problem as it is highly unlikely that someone will actually come up with a suitable solution if a language is considered invalid.
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