What needs for the transfer of knowledge from one generation to another are there in modern society?

In modern society, there is practically no such need, because there is the Internet. In which there is a lot of knowledge, however, the older generation has some secrets of cooking, cleaning methods, etc. And by adopting them and recording them on the Internet, everyone can learn this, and this need will go away completely. But even now, these tips only help a little, and often become outdated. So there is practically no need for this.