The document discusses decision-making at different stages of development from childhood through adulthood. It explains that decision-making skills become more important and consequential during adolescence and young adulthood as the decisions made can impact one's entire life. It also summarizes Piaget's four stages of cognitive development and how decision-making abilities change at each stage from relying primarily on senses to gaining more abstract thinking. The document stresses the importance of evaluating decisions after making them to continue learning from experience.