My mum had a jokey plan for when I was grown up and off her hands.
Commit some "victimless" crime that would get her 20 years. A financial crime would do it. "They" value money more than people. Go into jail, where food and lodging are provided. Read, when not working at some task.
Die before they kick you out.
I can see her logic if you can guarantee not getting shivved. Ideally, you work in the library.
That's funny, I've often thought the same thing... that jail could be a good retirement plan, if you're somewhat destitute. Commit some non-violent white collar crime when you're elderly and you've lost your zest for travel, wine, women and song but are content to live out a simple, routine life. Hopefully, you'll get into one of those cushy white collar "prisons" for non-violent offenders. What's not to like? Free food, free healthcare, place to sleep, TV, a job if you want one, excercise time out in the yard. Maybe they'll even give you a cat to hang out with!