I guess this explains why, growing up, I always found myself drawn to boys as well as girls despite being so entirely sheltered that I had never met a gay person in my life up until I was 15. It explains why I kept feeling these feelings even though I was taught that I was, "An abomination upon God," and feared desperately for my eternal soul. I know being transgender has nothing to do with being gay, but I assume you would think that's purely a choice, too; Which explains why, even from an age as early as 6, I felt an undeniable urge to dress like a woman and be pretty for other boys.
I'm not committing to anything in this topic since I'm pretty sure everyone here is going to deny everything that doesn't fit in with their opinions, but I just wanted to say: At the risk of sounding like some sort of hipster, I knew I was gay before being gay became a fad like it is now. Yeah there are people who pretend to be gay- just like there's 20 year olds who pretend to be 13 on the internet, people who pretend they give a stuff about a situation just cause everyone else does, people who pretend they are into a certain genre of music to appear trendy- and there are some cases of people who indeed choose to be gay and really become gay. (Gender neutral individuals, a.k.a panloveuals, who decide to only date a certain gender. They exist, I've known some and they're genuine.)
Homoloveuality isn't simply a choice just because some people become gay later in life, I know because I've lived with it my entire life.