> The work is meant to give them a routine and responsibilities.

Volunteer, not-for-profit work. Ban for-profit prison labor.

Put that proposal forward and see how long it takes to get lobbied out of oblivion.

Most prisons bait people into work via a combination of carrot and stick. Prisoners often lose privileges when they don't work, parole boards look very unfavorably on declining to work, and many prisons force prisoners to buy basic things like toothpaste and deodorant from a commissary out of their wages. Not working is not a reasonable option in the majority of cases.

Sounds like life in general frankly. There's also typically a heavy religious influence within prisons including helping people out with necessities. It's complicated.

That's not to say it is perfect by any means. I have friends who have been to prison that form my opinion and what impacts them most is not the prison but the society around them when they leave. They get passed over for jobs and end up on social assistance, social housing (when your rent cap is $376 and average rent is $1200 for a bachelor and your basic needs amount to $300 assuming you get some special diet).