Should i convert someone who wanted to become homeless rather than have a job?

You can't: Human beings are all a mystery. Don't try to change another person, even a loved one. It doesn't work, and they resent it. The best you can do is offer warmth, kindness, forgiveness, and model what you consider to be positive behaviors. It's a good thing you want to help; this is the way to do it. Even though humans are prickly, it's sometimes possible to love them back to their senses.