Would you let your adult child move back home with you?

Let's say your fully adult child (21+) had moved out and were living on their own, but for some reason became homeless. They're not on drugs, addicted, mentally ill, etc. and are a well-behaved and respectful person. They just had a stroke of bad luck with their job, rent, etc. and ended up in their car or on the streets. Would you let them come back and live with you for a time, or would you have them figure it out on their own? By "on their own", maybe you would give them advice, but no money and not a place to stay.