See also AAA

The U.S. probation/parole system highlights the challenges of individual freedom for individuals with limited responsibility and judgement. I don’t have statistics, but I think parolees and ex-prisoners often struggle with self-control and individual freedom. They are likely to become addicted to substances, gambling or gaming. They may also have problems with debt and personal credit. For these individuals, closer supervision and reduced freedom may help them avoid reoffence. In extreme cases, even when you are eligible for parole, you may be better off staying in prison, because the strict control is actually better than the “freedom” outside.

https://www.pewtrusts.org/en/research-and-analysis/issue-briefs/2018/09/probation-and-parole-systems-marked-by-high-stakes-missed-opportunities reported:

• about 4.5 million, or 1 in 55 U.S. adults, was on supervision [i.e. probation or parole] in 2016
• every years, about 2.3 million people exit probation or parole. Nearly 1/3 of them exit it with a unclean record. Among them, almost 350,000 return to jail.
• About one-fifth of felony defendants were on supervision when they were arrested.
• Rates of substance use among those on supervision are two to three times those of the general population. I think this contribute to their supervision offenses.