On the other hand, prisons entirely create problems they're supposedly there to solve. Just ask people who've gone through juvenile detention if it's not a breeding ground to make some contacts and learn the ropes..
You'd almost need a compound unit like (reconviction rate at x years) * (prison population/total population) in order to figure out what is going on, with the idea that you'd want both reconvictions and proportion of population in prison to be low numbers.
For reference, the US has 655 prisoners per 100k, Norway has 60 per 100k.
Another thing to note is some base it on reconviction, instead of reimprosonment, which obfuscate the data again.
A decent summary of some research done in 2020 in recidivism rates: https://worldpopulationreview.com/country-rankings/recidivis...
X/5 convicts return to crime because it is all they know and their peer group, family, and professional network are all infected by crime and their childhoods were marked by abuse, neglect, drugs, stress, anxiety, and isolation from healthy and stable human relationships. Good, well to do people like to pretend they are better than the lower classes but seriously undervalue their own good luck.
You can give an exconvict a bath, haircut, and paper degree all you want but at the end of the day the average citizen will still see them as scum and irreversibly damaged. Good luck finding a good job as a minority or (to a lesser degree) otherwise with any kind of record. The truth is that the punishment for a crime doesn’t end with one’s first stint in prison but continues for life.
Criminals are made far more often than they are born and the system is too quick to affirm the idea that they are little better than animals. No surprise to me that many return to crime.
Basically 1 in 5 ex convicts return to crime.