Yes, that is very illegal indeed. Its called hajf ha (latin translation meaing: inapropriat)
noo its not illegal they are basically brother and sister forget the half blood is blood.
no
It's legal if they're brother and sister, maybe.
There is no law against it. Housing arrangements are not subject to most laws.
There are no laws, the arrangements of rooms in a house hold has never been subjected to legislation.
I believe that is a no, they cannot. The 2 boys are older than her, so they would say no. ( the state)
it may depend on local laws, but i think it is ok until they are of school age around 5
There is no law against it. It might not be the best thing, but sometimes the family has no choice.
Depends on the state
Of course! They are too young to even consider or even have a curiosity or interest in what you're thinking
Eventually the girl will need her privacy and the boy will to so maybe at the ages of 10 to 12 for the girl. and in that amount of time the boy will be about 6 to 9. It really depends on the personality of the children.
To the mom
Well there are some laws that say a brother and sister can't share a bedroom, but I'm pretty sure a boy as young as 2 can. When he gets older you'll have to check the law where you live.
Yes, there are legal allegations for allowing a 16 year old girl to share a bed with a 20 year old male because she is a minor and he is not. If parents want they can press 'Statutory Rape Charges' against him.