Maybe because the hormones kill the libido which kinda defeats the purpose of the chastity cage?
I remember some tg girl in the chastity tread on /d/ was saying that before hormones she was really into it, but after that it became kinda pointless since the erection was gone and the libido wasn't strong enough for it to be that of use to wear all the time.
I don't think it's good to generalize like this, some like it as a sort of basic masochism, some like sort of a forced feminization, some as tool for enforcing the bottom position, I've seen many people being into that kind of stuff. But probably when you don't have such a need and ability to use your penis anymore, the need for chastity may be less.
>>9280
There are many ways you can have fun by depriving yourself or someone else of riding a Ferrari, you just have to use your imagination. ;^)