In regard to the speculations about the Crown Prince Couple's parenting (my view is that while some speculations are reasonable, it is impossible to draw any definitive conclusions):
It is perhaps pertinent to recall that Crown Princess Mette-Marit in her 2017 open letter to the media stated that she had held Marius to different (stricter) standards of behavior than his younger siblings. Thus, those who have concluded that her parenting of Marius was lax should be even more concerned on that account in regards to Ingrid and Magnus, whom she has on her own account parented more permissively than Marius.
"The role [of Marius] has also proved difficult to interpret for people around us in private. Ever since he was tiny. Everything from parents who have come with concerns and well-intentioned advice to teachers who have always had different expectations of Marius for his behavior than of others.
And I'm no better myself. As a mother I often have expectations of Marius for his behavior that are unrealistic, and different than what I would have had of his siblings."
Åpent brev fra H.K.H. Kronprinsessen i anledning Marius' 20-årsdag.
www.kongehuset.no
As for Crown Prince Haakon, he spoke in his 50th birthday book about feeling self-conscious about journalists witnessing rather ordinary events in his parenting of Marius, so it seems doubtful that his parenting style was unorthodox or that he is unaware of normal expectations (and for his sake, one hopes he has developed a thicker skin since then).
"Once Marius was three years old, we permanently moved in together. Suddenly Mette had to go do something [?], and there were he and I. He was three and started acting up somewhere. I became uncertain, people stared and probably thought: "That boy doesn't want to be with the crown prince!" But I loved being with Marius."
"I remember an Easter in Sikkilsdalen. We had taken part in the traditional Easter race at Setra. Mette had gone back to the cabin, I was outside with Marius, then he became acutely tired and very unhappy. He laid down and did not want to leave - while the journalists stood filming and taking pictures. Okay, what would the experts do? Well, I solved it my way: "If you come home now, you'll get lots of candy." The journalists heard that. Not my proudest moment."
I boken som ble gitt ut om han i fjor, forteller kronprins Haakon åpent om hvordan det er å være bonuspappa til Marius Borg Høiby.
www.klikk.no