Kim Rutherford, a qualified psychotherapist, told Express.co.uk she believes the route of the problem could lie with older generations.
She said: "It's arguable, that it's some of the older generation of the Royal Family that don't necessarily feel comfortable sharing, but that also coincides with traditional belief systems of older generations across the board.
"So should the Royal Family be doing more to promote mental health awareness, yes.. and they’ve just been given an opportunity to go really big with it."
Ms Rutherford isn't the only one to call on the Royal Family to do more for mental health awareness.