Sophie Wessex said it was "highly unlikely" that her daughter, Lady Louise Windsor, 16, and son, James, Viscount Severn, 12, would use their HRH titles when they turned 18. In an interview with The Sunday Times, the wife of Prince Edward said: "We try to bring them up with the understanding that they are very likely to have to work for a living.
"Hence we made the decision not to use HRH titles. They have them and can decide to use them from 18, but I think it's highly unlikely."
In contrast, Prince Andrew's daughters, Princesses Beatrice and Eugenie, have retained their HRH titles from birth.
She stressed that they wanted their children to have a "normal life" and go to "regular school" and go to friends houses for "sleepovers and parties".
The Countess added: "I guess not everyone's grandparents live in a castle, but where you are going is not the important part, or who they are.
"When they are with the Queen, she is their grandmother."
Sophie Wessex also had praise for her daughter Lady Louise and hopes that she will go to university, because she's "quite clever"
She added: "I wouldn't force her, but if she wants to. She's quite clever, so I think probably, whereas James I don't know."
The 55-year-old said that the teenager was working hard and will start A-levels in September.
Lady Louise was born a month prematurely weighing just 4lb 9oz and was diagnosed with the eye condition esotropia.
Sophie said that she had corrective surgery for a "severe squint" stressing that "it's still not perfect - but none of us are".
Reflecting on the birth of Louise in 2004, she admitted that it was "traumatic" during which she lost nine pints of blood describing it as "very scary".
Sophie ran her own PR company before she married Prince Edward in 1999.
Sophie Wessex heartbreak: How Edward was away for key Louise moment [REVEAL]
Sophie Wessex heartbreak: How Lady Louise was ‘taken away from mother' [REVEAL]
Sophie Wessex diet: The one food that gives the Countess her glow [REVEAL]
But she gave up her media career in 2002 after she was recorded in a News of the World sting in which she described Tony Blair as "President Blair" and referred to the Queen as "the old dear".
Commenting about adjusting to life as a full-time working royal, Sophie added: "Certainly it took me a while to find my feet. I had to reduce my expectations.
"I couldn't turn up at a charity and go, right, I think you should be doing this because that's what I was used to doing in my working life. I had to take a big step back."
Asked if she would be taking on more royal duties following the departure of Prince Harry and Meghan Markle, Sophie admitted that she is already "pretty busy".
She added: "People may pay more attention to what I am doing, but I remain as busy as I have ever been."
During the coronavirus pandemic, the family have opened several NHS Nightingale Hospitals via video link.
Sophie has also shared homeschooling tips with parents via Instagram to help boost morale.
The couple have also volunteered with local charities to help pack food parcels for the vulnerable.