Say you are going skiing with your family.

Say it is morning so everyone needs to wash and pee. At the same time.

Say you are leaving for the mountain and everyone needs to take a dump and brush teeth. At the same time.

Everyone is queueing to the same room.

I suggest separating the wash basin and shower from the loo into separate rooms.

Why are there so many surfaces on a toilet? Depending on where in the world you live toilets look different but as far as I can recall they all have too many surfaces to clean.

Lift the seat off the floor and hide the pipes and tubes. Make the seat go in the washing machine.