To me it shouldn’t matter, but it feels weird having the bathroom door open all the time. Also my shower sometimes does a midnight clunk for no obvious reason and it’s loud.
I never really thought about it until now, since I’ve never lived in a “master bedroom” with attached bathroom until now. Still on the fence, leaning towards keeping it open for convenience and airflow/dehumidification more than anything. Obviously I shut it after things get smelly.


In my home, everyone puts the seat down, then flushes. The seat stays down at all times when not in use.
The bathroom off our bedroom, has the cats’ litterbox in its closet. I cange the litter 2-3x a week, and always wash the bathroom down at the same time. We also have an air purifier right outside the door.
So, we keep the bathroom door open unless someone is using it. That bathroom is reliably the cleanest room in the house at all times.
Sorry but your attached bathroom has an attached closet?
A lot of master baths in the US have the master closet attached to the bathroom not the bedroom. Less than half, but it is common enough.
Niiiiiice