In the room with their parents will likely cause issues, especially now with the growing control freek parents. And later when they are almost adults, sharing a room with siblings, might to a lesser content, cause issues. Brother and sister, will cause a lot of stress. But hey, some call that positive.
The biggest issue is sharing it with parents, because some still believe beating their kids is fine and if the kid can’t even hide inside their room and lock the door, they are full out lost. I thankfully had a door to hide from my manic abusive mom. Fuck whoever says their own room isn’t required. Also siblings can be bullies and abuser too, just saying.