Before he climbed Mount Everest, there was some criticism over whether a 13-year-old boy should be allowed to attempt this. David Hillebrandt, medical adviser to the British Mountaineering Council, questioned whether Romero was mentally mature enough and then went on to say, It is totally against the spirit of true mountaineering. This sounds like it's about mass marketing, money and it's verging on child abuse. Nowadays, people are effectively being winched up (the mountains), using ropes that Sherpas have put in for them. It will all be done for him (Romero). He's a token passenger. Because of the concerns of climbing through the unpredictable Khumbu Icefall on the Nepal route, Romero and his team decided to climb from the Tibet side. On June 10, 2010, the Lhasa-based Chinese Tibet Mountaineering Association (CTMA), the official channel through which climbers must apply for permission to attempt peaks in Tibet, announced future age restrictions for all those attempting Everest from the north.