Unreasonable, because a considerable part of the ancient poems circulating now express depressed emotions (how many poets have you seen who were proud of their lives when they were alive? ) Similarly, artistic skills are not suitable, including painting and musical instruments (refer to Van Gogh and Beethoven).
You can teach singing and dancing and choose cheerful ones.
For boys, teaching some sports, starting with table tennis, is simple and easy to use, which can stimulate children's interest, and it is for two/more people to play and gradually meet new friends.