DS is 7, DD is 4, we live in a 3bed house but they share. We rent and are looking at buying but can prob only afford a 2bed which would mean them continuing to share. They also still share a bath and we've not had complaints from either of them yet. They get on really well but DS is fairly immature still which I suppose could be the reason he hasn't "clocked" he's still sharing with his little sister
what age did you seperate/did your DC ask to be seperated?