There is official data and it's these reunification programs. Plenty of rich cities will give you a bus ticket to live with friends and family. Most of the time

There is official data and it's these reunification programs. Plenty of rich cities will give you a bus ticket to live with friends and family. Most of the time it works out. Sometimes it doesn't and that unsheltered person is right back in the same place they left. But the person has to agree to house them before a bus ticket is purchased. They simply don't put them on the bus and let them figure it out.