The Chinese control the paper work in this case. Too bad there isn’t a blood or urine test what will revel a person’s age.
Yeah, these little gals undoubtedly have passports, birth certificates, heck, probably even driver's licenses "establishing" their ages as 16 and up. Of course, the Chinese government can print up any documents that it wants. Eventually, some sort of carbon-14 test might be developed...
"Born after 1950? Your eyes reveal your age"http://www.sfgate.com/cgi-bin/article.cgi?file=/c/a/2008/02/23/MNL0V79LA.DTL