BIRMINGHAM, ENGLAND - JANUARY 21: Catherine, Duchess of Cambridge visits MiniBrum, an interactive, child-sized world at Thinktank at Birmingham Science Museum on January 22, 2020 in Birmingham, England. The visit is part of HRH's 24-hour tour of the country to launch '5 big questions on the under 5s'. (Photo by Eddie Keogh-WPA Pool/Getty Images)
BIRMINGHAM, ENGLAND - JANUARY 21: Catherine, Duchess of Cambridge plays with a child as she visits MiniBrum, an interactive, child-sized world at Thinktank at Birmingham Science Museum on January 22, 2020 in Birmingham, England. The visit is part of HRH's 24-hour tour of the country to launch '5 big questions on the under 5s'. (Photo by Eddie Keogh-WPA Pool/Getty Images)
BIRMINGHAM, ENGLAND - JANUARY 21: Catherine, Duchess of Cambridge plays with a child as she visits MiniBrum, an interactive, child-sized world at Thinktank at Birmingham Science Museum on January 22, 2020 in Birmingham, England. The visit is part of HRH's 24-hour tour of the country to launch '5 big questions on the under 5s'. (Photo by Eddie Keogh-WPA Pool/Getty Images)
BIRMINGHAM, ENGLAND - JANUARY 21: Catherine, Duchess of Cambridge visits MiniBrum, an interactive, child-sized world at Thinktank at Birmingham Science Museum on January 22, 2020 in Birmingham, England. The visit is part of HRH's 24-hour tour of the country to launch '5 big questions on the under 5s'. (Photo by Eddie Keogh-WPA Pool/Getty Images)