Royal commentators say the remarks are likely to further complicate efforts to repair relations within the family.
Harry and Charles met briefly in September, marking their first face-to-face meeting in 19 months, but there has been little public sign of a wider reconciliation.
A source said: “Harry appears to view these remarks through the lens of his own personal journey and believes he is speaking broadly about modern parenting, self-improvement, and the lessons he has learned in adulthood.
“The problem is that many people, particularly within royal circles and among the British public, hear something very different. Because of the royal family’s history and the very public breakdown in relations between Harry and Charles, even general observations about upbringing are often interpreted as thinly veiled criticism of his father and the generation that raised him.”
The insider added, “There is a fundamental disconnect between Harry’s intentions and the way his comments are received. He may see them as constructive reflections on becoming a parent himself, but others inevitably view them as reopening old wounds and revisiting grievances that have already played out on the world stage.
“The King is trying to steer the monarchy through one of the most challenging periods of his reign while continuing to undergo treatment and maintain public confidence in the institution.
“His focus is firmly on stability, continuity, and demonstrating that the Crown remains strong despite difficult circumstances.”
They noted, “Against that backdrop, any renewed spotlight on family divisions is deeply frustrating for those around him. The Palace would much rather attention remain on the King’s work, his recovery, and the future of the monarchy than on another round of speculation about personal disagreements.
“Every time these tensions resurface thanks to Harry publicly, they risk overshadowing the message of unity and duty that Charles is working hard to try to project.”