Because it's a casual discussion, I think it's obnoxious when people constantly demand sources to be cited in online comments section when they could easily look it up themselves. This isn't some academic or formal setting.
And I disagree, only the second source mentioned prisons explicitly. The first source mentions social environments as well. So it's a damned if you do, damned if you don't situation. Additionally, even if you consider the second source, that source mentions punishment reforms to prevent that undesirable side effect from occuring.
I find it ironic that you criticized me for not citing sources and then didn't read the sources. But, whatever. Typical social media comments section moment.