Asked whether his public campaigning will go on, he added: “No, it won’t. I’m not that stupid. I do realise that it is a separate exercise being sovereign. So of course I understand entirely how that should operate.”
Asked about what some have termed his “meddling”, Charles defended his actions, which include establishing the Prince’s Trust in 1976 to help disadvantaged young people.
He said: “But I always wonder what meddling is. I mean, I always thought it was motivating, but I’ve always been intrigued, if it’s meddling to worry about the inner cities, as I did 40 years ago, and what was happening or not happening there.
“The conditions in which people were living. If that’s meddling I’m very proud of it.”
The documentary captured the future king in private and public, from feeding vegetable scraps to his chickens and collecting their eggs at his Highgrove home in Gloucestershire, to visiting Australia’s Great Barrier Reef to highlight climate change, and Caribbean islands devastated by a hurricane.
In the film he says of his role as Prince of Wales: “You have to make of it what you feel is right.
“So, there’s nothing laid down, that’s what makes it so interesting, challenging and of course complicated.”
The Duchess of Cornwall describes in the documentary how Charles was driven by the need to help others, adding: “He would like to save the world.”