How do the parents actions advance the plot?
O By preventing the couple from interacting the parents effectively put an end to the budding relationship.
By relying on a physical barrier to keep the couple apart the parents drive the couple to seek a place where they can
communicate freely
By discounting the couple's desires, the parents show they care more about themselves than their own children.
O By underestimating the power of the couple's love for one another, the parents doom their children to die.