I've seen that and it's hell. I knew one man who was married and naturally his parents moved in. They had a kid so the three rooms were kid's, his and his wife's and grandparents. Then grandpa's brother and wife want to move in because it's so nice there and they have a shit house. He wasn't even consulted. He comes to me complaining now there's a middle aged couple living on his sofa. I told him to buy a bigger apartment because more relatives would likely be moving in soon.