Again, this seems like people want low interest borrowing without the “icky” problem of having to answer for their past failure to pay debt.
The world doesn’t work that way.
I already mentioned that some well paying jobs (the kind that people stuck in debt traps would most benefit from) require an active credit score to obtain. So “not using credit” is not an option. As well, credit is a primary way that the people who hold generational wealth got that wealth. Oh, and they run the system.
You’ve created a straw “poor person” and insist on shadow boxing it. If you ever decide to confront the complex systems that these fellow humans face, I encourage you to read up on the modern credit system. Wikipedia has a good rundown with active sources.
Either you can pay your debt or not. If you can't, others will use that to infer other things about your suitability for various things like jobs.
The credit score isn't the issue, it's just the medium for transmitting information. Background checks can uncover the exact same issues. I can call your neighbor and ask if what kind of a person you're like and decide not to give you a job based on that answer.
That's just life - actions have consequences.