I'm slightly worried about some of these schemes.
I have taken in women refugees before (through a charity). I stopped for a while after a very traumatised woman was placed with me. I was in no place to cope with her. I had picked her up off the street as I couldnt get to the charity offices before it was closed and she became convinced that I was secretly trying to take her to Dungavel. Her experiences were way, way beyond anything that I could relate to or was prepared for.
Also, people's intentions are not always noble. For many, the motivation will be altruism and companionship - which is I guess what motivated me to do it - but I know from the stories of the people that I've taken in that many have ended up in living situations where they were basically exploited - either as childcarers, domestic labourers or for "sexual company".