The Maturity of Kaelynn

Wife just related an incident to me:

Yesterday, she bought some Yau Chae Kuay and upon reaching home, called Kristine and Kaelynn to come and eat them. Both said, 'No' and ran off.

Minutes later, Kaelynn returned and asked my Wife if she is sad because they did not eat the Yau Char Kuai after she bought for them? And then she continued, I will eat it for you...