King Charles III has urged Prince William to cease flying his family in helicopters, citing royal protocol that heirs should not travel together to safeguard the royal lineage. Despite being an experienced pilot, William has resisted his father's requests and continues to fly with his children, prompting Charles to require him to sign a formal waiver acknowledging the risks involved. This dispute reflects ongoing tensions within the royal family, especially following King Charles's cancer diagnosis, which has heightened his concerns about mortality and succession. Royal biographer Robert Jobson notes that this issue is reminiscent of past disagreements with the late Queen, who also expressed disapproval of William's flying habits. The potential consequences of a helicopter accident could have serious implications for the line of succession, particularly with Prince Harry remaining a contender for the throne. The ongoing conflict underscores the complexities of royal responsibilities and personal choices.