Read the following context and answer the question.
Context: The joy part of today is just seeing them both do things together . Yesterday Alex was trying to get Ethan to play with the cars like he does . Rolling them on the ground under the table at that moment .
Question: Why is seeing the two play well together the joyful part of the speaker 's day ?
Answer:


The speaker is the boy 's parent and wants to see their children interact peacefully