Ok, I don't say you r wrong when  u say  younger have better flexibility so better chance of winning .I agree absolutely right!!! I also agree everyone has to follow the rules of game.But If so then if country officially says she is 16 how can u suspect to be less just by looking at the face? Hum!!Ok if not 16 she is 15 why not other countries tried to put all  gymnast of  lower age in gymnastic?Definitely there was a girl of 34 from one  country probably czekoslovakia ,I am not sure about the country!! and others higher than 20 why not all other countries have all gymnast of exactly 16.12 yr old american or europeon looks like 30 yr old chinese whynot they include those players?It is not becoz they are 100% pure  but they cannot do as good as u say ,If does every country will never forbid any child from winning gold medal.The Question here is of suspect and politics not of ethics and truth .