My kids now 11 and 9. Girl and boy.. they always fight over the silliest thing. My daughter is very particular about her work but my boy is free and easy. Both of them simply cannot coexist. I m planning to let them sleep in the same room to force them to learn how to live with each. They have to learn sooner or later that accommodating is part and parcel of life when they grow up. If they can't even accommodate each other now, they will be suffer when they grow up.. living with others Anyone has similar problem?