Im not personally a fan BUT in our situation we have a single story house. I know it would be different if we had 2 stories though! We do close the bathroom door and as yet DD isnt tall enough to open it but the toilet is always open as is the kitchen. We were pretty persistant in teaching her not to the oven, the cupboard under the sink is locked but otherwise its free range. But like Sloane, we just have the 1 child too