How old was Tang when he began to learn calligraphy?

Don Lin Yan learned calligraphy at the age of six. Tang can learn calligraphy and writing when the baby is 6 years old. At this time, the baby's body and bones have been gradually improved, and her wrist has a certain strength. If you let your baby Tang write and learn calligraphy too early, it may affect the growth and development of your baby's hand bones, because the growth and development of your baby's bones are not perfect when you are too young, and the strength of your wrist is not enough.