[Satan]

But then I bring up the statement you made on the psychological development of a child. Punishment is viable for them because they are not finished developing and as such, that is how you pave the way for it.

Adults are not developing. They are finished. There is no road, there is no shaping.
There is REshaping. Mending. Etc.

You can't compare the mind of a child and an adult and expect it to be on the same playing field.

With the thought of reshaping, mending, what is allowing prison mates to intermingle reshaping them to be? They are surrounded by criminals like themselves, having conversations, telling stories, and in the case of gangs, plotting further crimes.
Same with television, you cannot reshape something unless it can be taught, unless you are implying that humans are so easily bent around that they are basically putty to fill a specified mold. In which case, do that for pedophiles as rehabilitation.

By giving prisoners access to entertainment, people like themselves, and everything else, you are then giving them a fun time. And by saying that the "time out" type comparison I made wouldn't work because their adults, have an adult sit alone in a prison cell, no contact beyond guards, and tell me just how much fun he has, and how much he wants to stay in that same place.

The reason you have repeat offenders is because 1, no rehabilitation required, 2, they get positive reinforcement from other prisoners for their crimes.