Honestly the title threw me for a loop but just for a sec because I remember you have a daughter and this might be a legit question.
I don't have any concrete evidence to link but I do agree with the commander, with all the additives found in our food today it isn't much of a stretch to think it has causality when looking at the sexual maturity rate in humans, especially the females.
My friends and I call them summer girls {some are 15, some are 16}, when looking at them from a distance or behind they have the shape of a mature women and then you see it, their face, you feel like a complete scum bag for even thinking such a thing about a young girl.
Then you realize it's not just you who thought this and it begs the question, What's going on here?
The fashion {or lack there of} has plenty to do with it I think, most younger women are completely objectified and have no clue as to why.
This post has taken on a tone that may be misleading, so I'll stop typing now...