Transitioning back into society is hard. Family relationships have to be re-established. Marriages and the problems caused by lengthy prison sentences have to be worked on. Jobs have to be found, and kept. Job applications ask if you have ever been in prison.
Bills have to be paid.
The stigma of being in prison is difficult to accept and overcome. No matter how hard a person tries or how much their life has changed, some people simply won't give them a chance. Another unique problem occurs on release from prison. Many ex-offenders who found a way to walk close to God in the prison setting find it difficult to maintain that walk outside the fence. Old friends and habits force their way back into their life.