Being gay is a fetish.

[John V]

I really shouldn't have to say this, but the thing you identify as isn't necessarily the thing that you are, and especially with cases of sexual orientation there are outside social pressures, many of them religious, some of them not, that are a factor, beyond strictly accurate reporting.

you don't have to say it. I already have, noting that bis are pressured to report as gay.

How many times have we heard the story of closeted gays or bi folk, afraid of reactions from society? Particularly from heavily religious families that indoctrinate their young people so heavily; it's hardly surprising that people come into themselves and change their label. Sexuality is a gradient, not a dividing line; you can discover things about yourself that you had never known before as time goes on, that hardly means that it's a choice.

Adding or dropping a team as an adult sounds like making a choice to me.

Regarding the twin issue, some studies indicate that a genetic propensity is influenced by other environmental factors both pre-natal and early in life; say it isn't purely genetic, but is set by a series of factors beyond your control at a young age. Is that a problem? That's still not a choice you get to make, you know...

Any studies along those lines that I've seen stop well short of saying they prove that sexuality is set at a young age. Links would be helpful.