My grandfather registered the live broadcast of ancient music on the recommendation of his chess friends. It's hot now, and he watches the live broadcast at home in the afternoon. A few days ago, grandpa asked me to help buy pens, ink, paper and inkstones. Recently, I learned calligraphy from a calligraphy teacher in the live broadcast room. I feel that this platform is quite suitable for middle-aged and elderly people, although it is not popular for the time being.