Fellow Christians.......?

I used to think that ity is a choice, but recently I have I heard a story (which was true) that made me think differently. A young boy the age of 5 brought up in a straight environment but yet had ual tendancies, and into adulthood was . How can you say that is a choice a 5 year old does not even know what that is. It is also scientifically proven that there is in some cases been proven that it has been ped down biologically. Do you not think that it may now be that you are born with these tendancies.