but they cant really know forever. Lots of gay teens grow into straight adults ( works the other way too, but gay--> straight is more common
I am not straight
I remember trying to explain this to my parents aged about 7, without having the vocabulary, or really knowing what I was talking about - I was trying to ask what happened to single adult women, as I didnt know any, and already felt the partnerships with men I saw all around me would never be for me
However, "knowing" at 7 just meant I knew what I was at 7, not that I knew what I was going to be at 14, 21, 28 etc.
I never became straight, but that doesnt mean I never will, I have a friend for whom it happened at 40. Im 50, and still not straight, but who knows what I will be at 60?
I guess there is less and less likelihood for movement as you age, and I a do not really believe that wild fluctuations happen throughout your life, but I dont think it is a clear EITHER/OR, and people do move around a little bit, where ever they are on the spectrum
But as a secondary teacher, it is quite striking that gay as a teen does not necessarily mean gay as an adult - I have had many 19/20+ years olds, stalwarts of the LGB clubs at 16, confide in me ( quite soften secretly!) later that they are straight now