Britain's Kate, Duchess of Cambridge, arrives to attend a meeting of the newly established 23rd Poplar Beaver Scout Colony in east London, Tuesday Dec. 16, 2014, in support of The Scout Association's "Better Prepared" campaign. (AP Photo/Ben Stansall, Pool)

Britain's Catherine, Duchess of Cambridge, wearing a blindfold, is helped to ice a cake by Fynley Gooch, aged 7, as she promotes disability awareness while meeting with children at the newly established 23rd Poplar Beaver Scout Colony in east London on December 16, 2014. The Duchess's visit supports the Scout Association's 'Better Prepared' campaign, which aims to help communities to deliver Scouting to two hundred locations across the UK where Scouting can have the biggest impact. AFP PHOTO / BEN STANSALL / POOL

Britain's Catherine, Duchess of Cambridge, lifts her blindfold, after being helped to ice a cake by Fynley Gooch, aged 7, as she promotes disability awareness while meeting with children at the newly established 23rd Poplar Beaver Scout Colony in east London on December 16, 2014. The Duchess's visit supports the Scout Association's 'Better Prepared' campaign, which aims to help communities to deliver Scouting to two hundred locations across the UK where Scouting can have the biggest impact. AFP PHOTO / BEN STANSALL / POOL

TOPSHOTS Britain's Catherine, Duchess of Cambridge checks a boy's blindfold before helping him ice a cake as she promotes disability awareness while meeting with children at the newly established 23rd Poplar Beaver Scout Colony in east London on December 16, 2014. The Duchess's visit supports the Scout Association's 'Better Prepared' campaign, which aims to help communities to deliver Scouting to two hundred locations across the UK where Scouting can have the biggest impact. AFP PHOTO / BEN STANSALL / POOL