The 15 Days actress, 41, who shares her son Alfie, 10 and daughter Iris, three, with her husband Tom Pitfield, has explained that the reason is because her career can be very fast paced.
Catherine, Princess of Wales, and her late mother-in-law Princess Diana never had the chance to meet, but they share a clear connection through their sense of impeccable style.
The birthplace of much of the Royal Family over the decades, including Prince William, this is where his wife Catherine delivered all three of the couple's children.
Catherine hasn't seen Jack for almost a year. Her bright 16-year-old - whom she and her husband adopted at three - is miles away and working, they suspect, for a County Lines drug-running gang.