Well, considering 2 of the Chinese gymnasts competed 2 years ago and their ages at those meets were listed as 13, the Chinese must be using a different calender where kids age quicker.
They cheated. Get over it.
I AM FREAKING OVER IT! Geez, you guys are just slow...
There’s other documentation, great use that! But like the author of this original article, if you’re hung up on physical appearance - GET OVER IT. Some races naturally look younger.