I've helped people released onto parole for years. It's tough. The terms might seem easy, but often aren't in practice. Most people have a history of addiction and/or mental illness and suddenly they are thrown into a world where everything is available for a price, and any medical help they were given is suddenly taken away and the life where everything was done for them (food cooked, clothes washed) is gone.

The majority are returned to prison within days/weeks/months of release.