None of those things listed told me why I should tell people. Like, what is the benefit from it?

My T knows and one friend (who's not my best friend - bestie doesn't know). Neither of the two will tell anyone and both are willing to listen if i'm struggling although I told friend i'd rather not talk to her about it since I have T. She said it was my life/my choice but as long as I was talking to someone about it.

Far as I can see, no one else needs to know.