CAERPHILLY, UNITED KINGDOM - FEBRUARY 22: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME) Catherine, Duchess of Cambridge visits the Caerphilly Family Intervention Team (FIT) to learn about their work with children with emotional and behavioural difficulties on February 22, 2017 in Caerphilly, Wales. (Photo by Max Mumby/Indigo/Getty Images)

CAERPHILLY, UNITED KINGDOM - FEBRUARY 22: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME) Catherine, Duchess of Cambridge visits the Caerphilly Family Intervention Team (FIT) to learn about their work with children with emotional and behavioural difficulties on February 22, 2017 in Caerphilly, Wales. (Photo by Max Mumby/Indigo/Getty Images)