I imagine some of it comes down to whether you really believe rehabilitation is possible. I do. I know that recidivism rates are high, but I do believe people can genuinely change. Obviously there are crimes at the more extreme end of the criminal spectrum where this looks less likely, and often (if not always unfortunately) the sentencing reflects this - so you’re less likely to meet those people anyway.
I’m fascinated by the ‘morally acceptable’ reasons for crime that people state. So someone might accept a person steals because they’re hungry and their benefits were messed up, but not if that person was raised in a very unstable home in which theft was considered the norm?
I grew up in an area where a number of my neighbours had criminal convictions. It was the norm, sadly, for them to have repeated jail time. I have family with criminal convictions. I knew, and know, them as people and not just ex offenders. They committed crimes, they ‘deserved’ their sentence, but it’s not as simple as them being ‘evil’ people. There is a lot in the backgrounds of many offenders, eg abuse, unsupported SN, poverty, crime in the family etc.
I’m not saying that excuses their crimes. But I can’t just immediately jump to disliking all ex offenders and believing they can’t change. I’ve seen people be rehabilitated, some who have gone on to try and help others, and try and prevent people going down the same path. I think companies like Timpsons do a great job of actually specifically offering work to ex offenders.
I’ll reiterate that I know there are plenty of people who commit crimes and are not nice people and won’t be rehabilitated. But I can’t immediately jump to the place of ‘I just don’t trust them’ for every single person that has been inside. Because I do believe rehabilitation is possible, for some, and that along with prevention should be our aim.