How, according to the author, can role-reversal be a positive thing in a child's life

Role reversal enables a child to understand hardships faced by the patents.

Explanation:

Role reversal means changing the role or performing someone else's role. This plays a very important role in understanding the anxiety or feeling of others. This has been referred to in context with our parents.

When a child is asked to play the role of his or her parents then he can very well understand the problems encountered by his parents. This made him understand his parents and improves the bond between a child and his parents.