What are the different ways in which Tilly’s parents could have reacted to her behaviour? What would you have done if you were in their place?
Tilly’s parents showed great faith in their daughter in a time of danger and emergency. They could have, like many other parents, ask her to shut up and follow orders from the elders of the family as they know best.
If I were in their place, I would have done the same. Because, if my daughter so seriously says something, that must be true, since she would want the family safe.