Do you think an individual or a group of individuals can actually maintain a certain quality of language and usage. if yes State how these rules can be applied effectively if your answer is no then State the reason why such control should not be exercise.

An individual or a group of individuals can actually maintain a certain quality of language and usage for a special amount of time as long as they continuously use a particular level of vocabulary, grammar and pronunciation. Language changes over time, in general and within individuals through life. If somebody's job or education requires, for example, the usage of complex language features, then it is likely that the person will perpetuate such characteristics.