There isn't a specific study that I'm aware of. But the information about excess estrogen in the water is pretty common knowledge.
My understanding of ingesting sex hormones is that they will have mental and physical influences on the body. I would suspect this could be particularly influential on young, still-growing bodies and minds.
I think it stands to reason that, since birth control pills are predominantly used in developed countries for the purpose of allowing heterosexual people to have casual, recreational sex without the fear of impregnating or becoming impregnated, and the resulting excess of this estrogen-based birth control that ends up in the water and being ingested by almost everyone who uses a city water supply, it might be the case that there could be a correlation between the ingestion of female sex hormones, by immature males, and the resultant upswing in sexual confusion that seems to be so prevalent as of late -especially within certain age ranges. I think it's an interesting idea whether it can be proven or not. Lots of ideas these days, don't require any proof or documentation. People just say whatever they want and no one is supposed to disagree with any of it or (god forbid) LAUGH at any of it. sheesh...
