>>40356622if it's not caged then it's still able to stretch itself every now and then enough for it to maintain some amount of function, it doesn't matter how long on hrt you are or if you masturbate or not, I'm sure you've seen it grow a tiny bit in size or shrink even while soft, it's basically constantly doing that to small parts of your erectile tissue throughout the day so you probably won't ever get true ed so long as that happens.
You also don't have to give up masturbating with your ass or nipples actually it's way better to only use them while caged. It'll speed up how quickly your body stops seeing your dick as anything sexual.