Kate Middleton believes in 'steady progress' as she learned ropes of royal life

A royal expert has said that Princess of Wales Kate Middleton believes in ‘steady progress’ as she learned ropes of royal life.

Speaking to the Fox News Digital, royal expert and author Simon Vigar said, "Catherine is no wallflower, somebody told me.

"She's got definite views about things. William obviously trusts her implicitly, and they need people like that. The queen needed Philip. Charles needs Camilla. And William needs Catherine. [And] she's very clever. I reckon she's probably the cleverest of a lot of them."

The royal expert also wrote in "The Four Wives of Windsor" that Prince William's "right-hand man" said the Princess of Wales believed in "steady progress" as she learned the ropes of royal life, explaining, "We're not going to rush our fences."

Simon continued to tell the outlet, "For instance, they had various charitable interests, ranging from wounded service personnel to early years education and homelessness."

Vigar explained, "The person who linked all of those together under the mental wellbeing banner was Catherine. It wasn't Harry or William. She was the one who said, 'Do you know what the common denominator with all of this is? It's mental wellbeing and mental health.'"

In comparison with Princess Diana and Queen Camilla, the royal expert said Kate's journey to becoming the Princess of Wales was unlike that of the royal women who came before her.

Vigar said, "It’s a huge social leap that happened with Catherine. Lady Diana Spencer was a member of the aristocracy. Camilla’s pretty posh, as we say in this country, not quite as posh as Diana, but posh."

However, "Catherine's middle class."