Bathrooms

When sitting on a potty the door should be able to open and close without hitting knees. 

When a little one is using a stool to brush teeth at the sink, the bathroom door should be able to open and close without having to move the stool. 

When someone gets out of the shower and leaves a damp spot on the bathroom floor...

That should be not the same spot my feet need to be when using the potty. 

The area around a potty should be large enough to lay down and the floor should be warm...

If you are sick enough to sleep laying next to a potty...

You will want the floor to be warm able.