Almost 40 Years ago, a homosexual co-worker told me he could tell that I was a homosexual teen-ager and that my fate was sealed. He suggested that I should just get it over with and spend the night with him. He would have really enjoyed using the hormonal washing argument on me if it had been around.
His parting statement was that I when I reached my 40's, I would find myself fleeing the straight life because homosexuality was my destiny.
I perceive that there was a time very early in my life when I was susceptable to such experimentation (out of ignorance) and such experimentation might have set me on the wrong course but I am convinced that the problem is not one intrinsic to ones own biology.
Also, I think there are a lot more bisexuals than either side of this issue would like to admit.