Is it okay for a six-year-old to have a three-hour calligraphy class?

Children's calligraphy class is generally more suitable twice a week. In many institutions, students practice calligraphy, and there is little time devoted to practicing calligraphy. Institutions usually attend classes for 90 minutes or 120 minutes, but there are other hours. According to 90 minutes, I have classes twice a week, which is only three hours. How about a month? A month is 12 hour. According to the standards of the art test, many art test candidates spend more than ten hours a day writing, which is more than the time spent in the interest remedial class in January.