Some elders who are not good at Mandarin think that the reason why they are not good at Mandarin is that there is no Mandarin environment when they were young, so they try their best to communicate with their children in half a bucket of Mandarin at home. Finally, children can't speak their mother tongue dialect; Children go to school, come back to correct you half a bucket of Mandarin, and rightfully accuse you of teaching wrong. When children grow up, they more or less begin to regret that they have lost the ability of their mother tongue dialect (this phenomenon is more obvious in unofficial dialect areas, whether communicating with fellow villagers or understanding local culture). In fact, the most suitable place to teach Mandarin is the school.

Why? Because our Putonghua is guaranteed by the state's compulsory force (English is not) and there are educational policies to ensure this Putonghua environment; At the same time, children's language learning ability is very strong, multilingual learning is really not a problem, but also can stimulate and enhance intelligence. It's really hard to lose your mother tongue at this age. Is the disappearance of dialects inevitable and reasonable? Is it necessary to promote the disappearance of dialects? Not exactly. The existence of languages/accents around the world tells the rationality of the existence of local languages, and even "curry-flavored Indian English" is very nourishing. If language finally disappears, it is ultimately a problem between people and the economy, which is caused by the negative effects of the government and local people. Why do you say that? On the one hand, our human intelligence is not low, nor can we just master the brain capacity of a language. Secondly, dialects and common languages do not conflict, and languages, like tools, can be used appropriately according to different situations and groups. For example, people in the European Union use French, German and Spanish, but they have never seen the east wind overwhelm the west wind. The multilingual environment in Europe and America is better and more inclusive than that in domestic dialect areas. Because of the foreign language course education in their school, Europeans with average IQ often master many languages, and mastering German, English and French at the same time will not make students schizophrenic, so it is easier to master the same language family.