To all the people of LGBT community in this subreddit (except transgender) what made you reject straightness ?

Lol. Let me say something as a straight man (or cis I believe its called these days?)- I don’t remember ever “rejecting” same sex preference. I knew who I was and what I wanted at a young age. Im pretty sure the obviously gay kid in my third grade class (who exited the closest in high school) knew instinctual what they were about too early on.