Some say that hindsight is 20/20 (meaning perfectly clear). Are we doomed to make mistakes just to learn from them?

Yes

Explanation:

I think it is part of human nature to make mistakes then regret and learn from them.

boccaccio employs the voice of his narrator dioneo to represent his ideas on the tension between masculinity and femininity.  while dioneo excites the members of the brigata and recognizes women for their unique skills and independent ideas, he concludes the decameron with a story reminiscent of the society from which these young aristocrats escaped, revealing misogynistic overtones.  dioneo boccaccio is able to explore the gender disparity which is inherent in 14th century florentine society.