I don't know, there was this kid I went to grade school with who is gay. It was pretty obvious from day 1. the same can be said for my wife's 8 year old cousin - That kid is GAY!
Although the kid is 8 years old, consider:
His own family will treat him as he is gay.
He will be tormented by classmates for being gay.
He will be picked, one out of a thousand, by pedophilic predators.
He will be pressured by other gays to acknowledge he is gay.
He will be welcomed by gays, while ostrasized by many straight people.
He will find he has much in common with gays.
(Think of the little girl who believed herself to be a bee, in the video "No Rain.")
Yeah, I bet there's a good chance that kid ends up gay.