I know this is so subjective, but in your mind how long would you let two siblings, one girl and one boy, share a bedroom? They are about 4 years apart and love sharing a room with two twin beds. We have a bedroom (beds, stuffies, books, clothes) and a play room. Both are shared spaces between the two of them. I know this can’t last forever, but I’m wondering if anyone has opinions or experience to encourage us!