I think in theory it might have some merit with there being a shortage of public housing. I think though, if they make people share, they need to put thought into who. For eg. you wouldn't expect a mother with two children to share with a single male they don't know. But perhaps if they have singles living in a house together that would work? A lot of single people live in shared housing (not in public housing) i have, because i couldn't afford to live on my own.