The quote suggests that the deeper truths of a family are often discovered only later in life, implying a loss of innocence. As children grow up, they may find that their understanding of their family dynamics and secrets changes dramatically. By the time these realizations occur, they have transitioned from being children to independent adults, altering their relationship with their family.

This notion highlights the complexity of familial relationships and the inevitable passage of time. It suggests that the initial perception of family is often naive, and that with maturity comes a more nuanced understanding that can lead to feelings of disconnect. Ultimately, it emphasizes the bittersweet nature of growing up and uncovering the realities of one's family history.