What is the rumor or lie that you have heard for the longest time?

Leonardo da vinci began to draw eggs at the age of five, and one painting took three years. I don't know which grandson made up this story to trick children into doing boring basic exercises. In fact, Da Vinci was sent to Florence by his father at the age of fourteen, and he received formal art training in verrocchio. The subjects of painting are varied, including natural scenery, architecture and people. From the perspective of art education, it is necessary to practice a basic movement repeatedly. But boring exercises like eggs or geometric figures can neither improve students' observation ability nor make children feel tired easily. Too boring exercises can even affect children's thinking ability. It is simply killing children's interest and talent. In addition to letting children understand the "rules" of sketching, the improvement in other aspects is really limited. Teaching children in domestic studios is a replica of this rumor. A few broken pots and plaster models are really all for many children who learn painting. There is no reason to do that. Very cheap.