He'll definitely be extorted behind bars at some point in time. Even if he joins a gang, the gang will get their payment for that protection one way or the other. They'll take the shit from the packages his parents bring on visits or send to him, and they'll tell him what to buy in the commissary with the money that his parents send to his account at the prison. And then there's sex of course.
Not sure a gang would take him. He can’t put any work in. He’s too small. He’s going to be a victim his entire time in.
And then there’s sex of course. :-)