Isn’t reflection true for all of Lent? I guess it comes down to the individual. Can your son properly reflect on the death of Christ on the same day participating in tennis tournament? I’m going to the park with family and friends, and even though I’m observing the fast requirements and will say my prayers etc, I still plan on having the outing. For me, I can do both.
The cherry blossoms are so beautiful and such a wonderful counterpoint to the meaning of the day that I want to experience the beauty of Japanese nature whilst reflecting on the death of Our Lord.