Answer:
"We shouldn't worry too much, though, because it is precisely our mistakes that teach our children the most about life."
Explanation:
According to the given sentence, the claim of the author is that "Shielding our children from [mistakes] by striving for perfection in our own parenting does them no favors."
Therefore, the sentences from the passage that most directly expresses the counterclaim is "We shouldn't worry too much, though, because it is precisely our mistakes that teach our children the most about life."
A claim is the main argument of a text while a counterclaim is the opposing argument to the claim.
