I am one of 7 children and grew up sharing a room with one of my sisters and out of all my siblings I am still closer to her than the others, I love kids sharing my DS and DD shared for 2yrs and now both DD's are sharing and doing great. DS sometimes cries at night now because he said he is lonly in his room by himself and want to have his baby sister in his room, but as his room isn't big enough he will have to wait untill we move again by which time he will be 8 or 9 so I dont think he will want to share then.