LONDON, UNITED KINGDOM - MARCH 11: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME) Catherine, Duchess of Cambridge visits the mentoring programme of the XLP project London Wall on March 11, 2016 in London, England. XLP supports young people who are facing emotional, behavioural and relational challenges. XL-Mentoring programme since 2008. (Photo by Max Mumby/Indigo/Getty Images)